The Complete Shredding Guide For Summer

THE COMPLETE SHREDDING GUIDE FOR SUMMER
(Get shredded in a fucking month)
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Scientific Backup/ Sources:


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength vs lower protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat vs glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:




- A glycogen depleted Menas
 
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how I am gonna be looking this summer:

IMG 1911
 
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dnp and forget
 
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fuck @Sadist i waited longer than for this thread:ReallyMad::ReallyMad:

gonna read the thread and tell you what i think boyo
 
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Will be following this
 
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good fucking shit:Okay:
 
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All water + its almost june if youre not shredded yet its over
 
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No one will follow it unfortunately, everyone are fat fucks
 
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That's the point of the thread, this shit will get you shredded in a month
If you want to do a psmf just read lyle mcdonalds guide to the rfl diet but atleast its not one of those shitty threads where they tell you to just eat 500 deficit as if thats gonna do anything
 
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Mirin, good tips
 
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read every molecule
 
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If you want to do a psmf just read lyle mcdonalds guide to the rfl diet but atleast its not one of those shitty threads where they tell you to just eat 500 deficit as if thats gonna do anything
Yeah, I included his video in the tl;dr section, also this is not just about PSMF
 
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THE COMPLETE SHREDDING GUIDE FOR SUMMER
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Sources and credits


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength versus lower‑protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat versus glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release; prescription drug with non‑trivial long‑term risk profile. [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release; prescription drug with non‑trivial long‑term risk profile. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

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THE COMPLETE SHREDDING GUIDE FOR SUMMER
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Sources and credits


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength versus lower‑protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat versus glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

bookmarked
 
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Reactions: Menas
good thread
mirin
will read later
+ bookmarked
 
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read every pixel. it didnt even take too long.
 
  • Love it
Reactions: Menas
THE COMPLETE SHREDDING GUIDE FOR SUMMER
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Scientific Backup/ Sources:


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength vs lower protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat vs glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

fuahhhhh bump inb4 botb i was here wagfmi kunts
 
  • Love it
Reactions: Menas
naturally a 8-10% bf without dieting, calories counting or using glp's-1/2/3
good thread though
 
  • Hmm...
Reactions: Menas
naturally a 8-10% bf without dieting, calories counting or using glp's-1/2/3
good thread though
No one is 8-10% bf naturally, you're probably overestimating dude
 
  • JFL
Reactions: Mast
THE COMPLETE SHREDDING GUIDE FOR SUMMER
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Scientific Backup/ Sources:


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength vs lower protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat vs glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

don´t need it still read it
mirin the music
 
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I think doing PSMF diet is useless, especially if natty. A 300-600 deficit is better for many reasons. You should only do it if you want results now which is retarded since you could just start that but beforehand while still becoming stronger and lowering the risk of muscle loss which is very high in a diet like PSMF

you should prioritize carbs during your cut, not protein. Eating 1.6-2x your BW (KG) is enough during a cut (and yes Im aware this is a PSMF guide but I’m advising this in general)

You would be fatigued as hell after your 3rd exercise when working out

Not to mention the way it’s going to ruin your relationship with food unless you know EXACTLY what you are doing or you are doing it with a coach

A diet is not a period it’s a lifestyle, that’s something that is very important to note. You can’t just expect to stay in the weight you aim for if you can’t keep this style of weight lose as a lifestyle
Ts is not accurate at all

Also you are just as lean as your fattest body part
Download MyFitnessPal
I think cronometer and tracked mogs but it’s about priority tbh

Train each muscle group 1–2× per week.
2 minimum. You would increase the risk of muscle loss the less you stimulate the muscle

In an aggressive cit like this I would aim for 3x frequency for each muscle you care about tbh
Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery
this is very true. I know so many people who try to force progression during a cut and they just end up reducing progression.

If you maintained the loads in the gym, you didn’t lose muscle- I think you should’ve mention this.
Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)
Steps are the best form of “cardio”

They cayse less fatigue + hunger while still making you lose weight rapidly

I wouldnt do zone 4+ during a cut tbh

Great guide tho BOTB worthy
 
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THE COMPLETE SHREDDING GUIDE FOR SUMMER
(Get shredded in a fucking month)
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Scientific Backup/ Sources:


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength vs lower protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat vs glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

HOLY GOLD LOOT
 
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really good thread, was gonna make a similar one myself.

i would of just possibly added the alperts cap as a general rule of thumb so the deficit isint too aggressive to the point that it would be a waste in the sense of not losing only fat depending on the persons height or weight

but good shi, i used psmf when i was getting lean.
 
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I think doing PSMF diet is useless, especially if natty. A 300-600 deficit is better for many reasons. You should only do it if you want results now which is retarded since you could just start that but beforehand while still becoming stronger and lowering the risk of muscle loss which is very high in a diet like PSMF
I just edited some stuff before your reply lol, I forgot to add the (Get shredded in a fucking month) part, the main point is to get results ASAP.
Ts is not accurate at all
It's the best one I could find
I think cronometer and tracked mogs but it’s about priority
Never used them so I wouldn't know, thanks for the recs tho
2 minimum. You would increase the risk of muscle loss the less you stimulate the muscle

In an aggressive cit like this I would aim for 3x frequency for each muscle you care about tbh
1 is sufficient, 2 or 3 would obviously be better.
Steps are the best form of “cardio”
Yeah I tried to highlight them as much as possible anyway.
They cayse less fatigue + hunger while still making you lose weight rapidly
I did mention that aswell no?

Great guide tho BOTB worthy
Thanks brah :Comfy:
 
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I just edited some stuff before your reply lol, I forgot to add the (Get shredded in a fucking month) part, the main point is to get results ASAP
Yeah, no point in doing this diet for more than
8 weeks tbh, you will just risk much more muscle loss

I agree tho
I did mention that aswell no?
yeah you did
 
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@Master take notes
 
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WE all getting lean this summer :love:
 
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THE COMPLETE SHREDDING GUIDE FOR SUMMER
(Get shredded in a fucking month)
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Scientific Backup/ Sources:


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength vs lower protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat vs glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

Mirin thread bhai :feelsautistic:
 
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Reactions: Menas
THE COMPLETE SHREDDING GUIDE FOR SUMMER
(Get shredded in a fucking month)
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Scientific Backup/ Sources:


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength vs lower protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat vs glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

Will read later bump @ICL
 
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THE COMPLETE SHREDDING GUIDE FOR SUMMER
(Get shredded in a fucking month)
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Scientific Backup/ Sources:


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength vs lower protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat vs glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

Mirin botb
 
THE COMPLETE SHREDDING GUIDE FOR SUMMER
(Get shredded in a fucking month)
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Scientific Backup/ Sources:


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength vs lower protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat vs glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

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THE COMPLETE SHREDDING GUIDE FOR SUMMER
(Get shredded in a fucking month)
q50sla.png
Table of contents:
0 – Introduction / Disclaimer
1 – Prerequisites (BF%, LBM & Protein Target)
2 – Diet (PSMF Setup & Food Choices)
3 – Maximizing Fat Loss Mechanisms
3.0 – Overview: Lipolysis & Beta‑Oxidation
3.1 – Maximizing Lipolysis (Fat Breakdown)
3.2 – Maximizing Beta‑Oxidation (Fat Burning)
4 – Ancillaries (Appetite, "Fat Burners", Peptides)
5 – Exercise (Lifting, Cardio & Steps)
6 – How to Prevent Failure (Mindset & Social Tactics)
7 – TL;DR
8 - Scientific Backup/ Sources:


Thread Music:



0 Introduction / Disclaimer
949w48.png

By no means is this medical advice. Even though the risks are relatively low, everyone is different and some people may respond to this differently than others (although as I said, the majority should be fine).​


This thread is mainly focused on PSMF, most of the other stuff isn't mandatory but still better to include. PSMF stands for protein sparing modified fast, It's a diet where you mainly eat protein, it allows cutting efficiently without losing almost any muscle mass during cutting.
My 3 Month PSMF transformation:
fyxzn2.png




1 Prerequisites (BF%, LBM & Protein Target)
1.0 – Estimate your body fat %
You can estimate body fat by eyeballing (Which is probably the most accurate tbh) or using calipers, DEXA, or a decent impedance scale.
Once you have a body fat estimate, calculate your lean body mass (LBM):

Lean Body Mass = Bodyweight × (1 − Body Fat %)

Example: 180 lbs at 15% body fat → 180 × 0.85 = 153 lbs LBM.

rkfdco.png
1.1 – Set your daily protein target
Aim for roughly 1 g of protein per lb of lean bodyweight (about 2.2–2.5 g/kg LBM). Higher protein intakes during a deficit preserve more lean mass and strength vs lower protein diets. [1]

So at 180 lbs with 15% body fat (153 lbs LBM), target around 150–160 g of protein per day.

Body Weight (kg)​
Body Fat %​
Fat Mass (kg)​
Lean Body Mass (kg)​
Daily Protein Target (g)​
60 kg​
10%​
6 kg​
54 kg​
~119 g​
60 kg​
15%​
9 kg​
51 kg​
~112 g​
60 kg​
20%​
12 kg​
48 kg​
~106 g​
70 kg​
10%​
7 kg​
63 kg​
~139 g​
70 kg​
15%​
10.5 kg​
59.5 kg​
~131 g​
70 kg​
20%​
14 kg​
56 kg​
~123 g​
80 kg​
10%​
8 kg​
72 kg​
~159 g​
80 kg​
15%​
12 kg​
68 kg​
~150 g​
80 kg​
20%​
16 kg​
64 kg​
~141 g​
90 kg​
15%​
13.5 kg​
76.5 kg​
~169 g​
90 kg​
20%​
18 kg​
72 kg​
~159 g​
90 kg​
25%​
22.5 kg​
67.5 kg​
~149 g​
100 kg​
20%​
20 kg​
80 kg​
~176 g​
100 kg​
25%​
25 kg​
75 kg​
~165 g​
100 kg​
30%​
30 kg​
70 kg​
~154 g​

1.2 – Start tracking your caloric intake
Download MyFitnessPal (or any decent tracker), weigh food on a kitchen scale, and log everything that goes into your mouth.
Specify raw vs cooked and pick accurate entries, you can't run a precise PSMF if you're eyeballing calories.



2 Diet (PSMF Setup & Food Choices)
ss4wcj.png
2.0 – Core diet rules
This is a PSMF, so:

Protein: set by LBM (usually 120–200 g/day for most).
Carbs: ~20 g/day or less (mostly from low‑cal veggies).
Fats: ~20 g/day or less (just what rides along with lean meats).
Total calories: generally 600–900 kcal/day in a classic PSMF setup

You're gonna be living on lean protein with trace fats/carbs. Everything else is flavor and damage control.


2.1 – Food choices
Food
Protein per 100g
Fat
Carbs
Chicken breast (raw)​
~23g​
~1g​
0g​
Turkey breast (raw)​
~22g​
~1g​
0g​
Cod/white fish​
~18g​
~0.5g​
0g​
Egg whites​
~11g​
0g​
~0.7g​
Low-fat cottage cheese​
~11g​
~1g​
~3g​
Whey isolate​
~90g​
~1g​
~1g​
A simple baseline day:
– 500 g chicken or turkey breast across the day.
– 1–2 scoops whey isolate to fill any protein gaps.
Solid meat is usually superior to shakes for satiety, but as long as you hit your protein target and keep fats/carbs low, you're doing it right.
Use:

– Zero‑cal seasonings, herbs, spices.
– Sugar‑free drinks, black coffee, tea.
– Low‑cal veggies (lettuce, cucumber, zucchini, broccoli) in moderation

Because the calories are so low, official PSMF programs usually add a multivitamin and extra electrolytes (sodium, potassium, magnesium) to prevent deficiencies. [2] Target ranges (e.g., ~3–5 g sodium, ~2–3 g potassium, 300–400 mg magnesium per day).


3 Maximizing Fat Loss Mechanisms
2xvu2d.png
j9j8og.png

3.0 Overview: Lipolysis & BetaOxidation
Fat loss happens in two major biochemical steps:

Lipolysis: breakdown of stored triglycerides in fat cells into free fatty acids (FFAs) and glycerol.
Beta‑oxidation: transport of FFAs into mitochondria and burning them for ATP.
https://www.ncbi.nlm.nih.gov/books/NBK560564/
You still need a calorie deficit, but how much of that deficit is filled by fat vs glycogen/glucose and muscle depends on how well you're mobilizing and oxidizing fat.

Keep in mind, we care about body composition and not just fat loss. [5]




3.1 Maximizing Lipolysis (Fat Breakdown)
2xvu2d.png

Lipolysis is controlled mainly by hormone‑sensitive lipase and related enzymes in adipose tissue.
https://en.wikipedia.org/wiki/Lipolysis
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

Key drivers:

Catecholamines (adrenaline & noradrenaline):
Bind β‑adrenergic receptors (β1/β2/β3) on fat cells → ↑cAMP → activate hormone‑sensitive lipase → more FFAs released into the blood.

Glucagon:
Works alongside catecholamines in the fasted state, especially when liver glycogen is low, to support fat breakdown. [7]

Low insulin:
Insulin directly suppresses lipolysis, lowering insulin via fasting, low‑carb/ketogenic diets, or deep calorie restriction removes that, hence why PSMF mogs.

Lifestyle factors that boost lipolysis:

– Hard lifting / HIIT → big catecholamine spikes and acute increases in lipolysis. [8]

– Fasted cardio → with low insulin, catecholamine signalling on fat cells is more effective (though daily fat loss still depends on the total deficit).
– Cold exposure → cold showers / ice baths activate the sympathetic nervous system and brown fat, giving a modest increase in lipolysis and energy expenditure aswell though the effects are negligible. [7]

Common lipolysis‑oriented drugs:

– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– GLP‑1 agonists (e.g. Semaglutide): mainly reduce appetite and improve glycemic control; by lowering energy intake and postprandial insulin they indirectly support fat loss. [9]

– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release [10]
wkacpt.png

Also I must mention that on PSMF, you already have low insulin and frequent catecholamine spikes (training + big deficit), so you're naturally in a high‑lipolysis environment even without these.



3.2 Maximizing BetaOxidation (Fat Burning)
j9j8og.png

Once FFAs are in the bloodstream, they must get into mitochondria to be burned. Long‑chain fatty acids depend on the carnitine shuttle for entry into the mitochondrial matrix. [11]
Key drivers:

Carnitine & mitochondria:
Carnitine transports long‑chain fatty acids across the inner mitochondrial membrane; deficiencies or transport defects impair fat oxidation and shift fuel use toward carbs. [12]

Endurance / Zone 2 training increases mitochondrial density and the ability of muscle to use fat as a primary fuel. [13]

Keto / fasting / PSMF upregulate enzymes involved in fat oxidation and ketone production.

Metabolic rate & AMPK:
Thyroid hormone (T3) increases metabolic rate and upregulates many genes involved in energy expenditure and fat oxidation. [9]
AMPK activation (via exercise, deficit, metformin/berberine) signals a low‑energy state and promotes fat oxidation while improving insulin sensitivity. [8]

Common beta‑oxidation‑oriented agents:

– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.




4 Ancillaries (Appetite, "Fat Burners", Peptides)
57qjwk.png

4.0 – Appetite control & GLP‑1s
Retatrutide, Semaglutide, Cagrilintide, Tirzepatide (Mounjaro), etc. are GLP‑1 / multi‑agonist drugs that strongly reduce appetite and improve glycemic control, making it easier to adhere to a long‑term calorie deficit. [9]

Makes PSMF 10 times easier to follow up.

4.1 – Stimulants
Caffeine, ephedrine, and prescription stimulants (Methylphenidate, Dextro, Vyvanse etc.) suppress appetite and increase catecholamines, which can raise energy expenditure but also heart rate, blood pressure.

I must say they are very mogger for energy on cut to keep up with daily life, I'm probably going to post a thread about stims soon aswell.

4.2 – "Fat‑loss enhancers"
– Clenbuterol: β2‑agonist → ↑cAMP → ↑lipolysis; can cause tachycardia (High heart rate) though.
– A-Yohimbine: α2‑antagonist blocking anti‑lipolytic signalling; works best fasted (insulin blunts its effect) but can cause anxiety and blood pressure spikes.
– Ephedrine + caffeine: increases catecholamine release / β‑receptor activation → ↑thermogenesis and lipolysis; significant CNS and cardiovascular load.
– L‑Carnitine: Facilitates fatty acid transport into mitochondria. Best injected (oral absorption is kinda poor). [14]
– Berberine / Metformin: Activates AMPK → ↑fat oxidation. Also improves insulin sensitivity. [15]
– T3 (Cytomel): ramps metabolism and fat burning but can accelerate muscle loss, strain the heart, and suppress normal thyroid function if misused.
– Exogenous ketones / ketone esters: Forces body into ketosis → ↑fat oxidation. Useful for non-keto dieters. ( doesn't really matter when on PSMF)
– GW501516 (Cardarine): PPARδ agonist → ↑fat oxidation + endurance. called cancerine by some (although the evidence is mixed). Depletes carnitine—relies on sufficient carnitine for beta oxidation effects.
– Growth Hormone (GH): stimulates hormone‑sensitive lipase and increases FFA release;. [10]

4.3 – Metabolic aids & cortisol modulation
– MOTS‑c: mitochondrial‑derived peptide that mimics exercise‑/fasting‑like signals → ↑AMPK activity, insulin sensitivity, and fat oxidation; may help preserve muscle.

– Metyrapone: cortisol‑synthesis inhibitor (blocks 11‑β‑hydroxylase) → lowers cortisol; used clinically in adrenal‑excess / Cushing‑related workups and mild autonomous cortisol secretion to improve metabolic markers.

Bottom line: if you aren't already sticking to your diet, ancillaries are not the bottleneck.


5 Exercise (Lifting, Cardio & Steps)
6d2ijo.png
5.0 – Lifting to keep muscle
On a PSMF, high protein plus resistance training is what tells your body "keep this muscle" while you're in a big deficit. [16]

– Train each muscle group 1–2× per week.
– Keep your main compounds in (bench, squat, deadlift, OHP, rows, pull‑ups), but don't chase PRs while aggressively dieting.
– Focus on maintaining strength and performance, not progressing; 2–4 hard sets per exercise is usually enough stimulus without murdering recovery.


5.1 – Cardio & steps
– Baseline: aim for around 10k steps per day to keep NEAT high.
– Avoid excessive added cardio at the start of a PSMF – it ramps hunger and fatigue and can speed up metabolic adaptation on very low calories.
– In the final days before a deadline, you can add more Zone 2 cardio (incline treadmill, cycling, etc.)


6 How to Prevent Failure (Mindset & Social Tactics)
– Don't say "I'm on a diet" to no. Just say you're not hungry or you already ate bro
– Learn to enjoy social events without eating; sip sugar‑free soda, water, tea, or black coffee and chill.
– No cheat meals, no "just one slice", no "I'll make up for it tomorrow".
– Remember that in normal day‑to‑day life, almost no situation actually forces you to eat junk – either stay fat or be shredded, make your choice.

Run this properly and, depending on your starting body fat, you can get noticeably lean in ~4–8 weeks,
which lines up with what clinical PSMF programs see under supervision. [17]


7 TL;DR & More material

TL;DR:
Track calories, Fats and Carbs < 20gr, Eat mainly protein, Supplement electrolytes, Eat Less than 1000calories, Train each muscle group 1-2 times a week, Keep your step count and daily activity high (<10.000 steps)

Trust the process.

Optionally:
Use GLP‑1 / multi‑agonists like Reta, Tirz or Cagr for apetite suppresion, Use Stimulants for energy and apetite suppresion, Use the "Fat Loss Enhancers" to maximise lipolysis and beta oxidation, Use Mots-c for metabolic markers, Use Metyrapone to inhibit cortisol, Introduce Zone 2 cardio after a while​




8 Scientific Backup/ Sources:
1. A systematic review of dietary protein during caloric restriction in resistance trained lean athletes: a case for higher intakes.
https://pubmed.ncbi.nlm.nih.gov/26817506/

2. Protein sparing modified fast diet program.
https://www.clevelandclinicabudhabi.ae/en/health-library/health-resources/treatments-and-procedures/protein-sparing-modified-fast-diet-program

3. The biochemistry and physiology of mitochondrial fatty acid β-oxidation and its genetic disorders.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5766985/

4. Fatty acid oxidation.
https://www.ncbi.nlm.nih.gov/books/NBK560564/

5. Body recomposition: can trained individuals build muscle and lose fat at the same time?
https://pmc.ncbi.nlm.nih.gov/articles/PMC5421125/

6. Lipolysis.
https://en.wikipedia.org/wiki/Lipolysis

7. The combined effects of exercise and food intake on adipose tissue and splanchnic metabolism.
https://journals.physiology.org/doi/full/10.1152/ajpgi.00554.2006

8. AMP-activated protein kinase, a metabolic master switch: possible roles in type 2 diabetes.
https://www.sciencedirect.com/science/article/abs/pii/S1043276017301492

9. Once-weekly semaglutide in adults with overweight or obesity.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10552824/

10. Effects of growth hormone on glucose, lipid, and protein metabolism in human subjects.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6226059/

11. Carnitine transport and fatty acid oxidation.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4967041/

12. Carnitine and fatty acid transport.
https://www.lipidmaps.org/resources/lipidweb/lipidweb_html/lipids/simple/carnitin/index.htm

13. Adaptations of skeletal muscle to endurance exercise and their metabolic consequences.
https://pubmed.ncbi.nlm.nih.gov/23899751/

14. Carnitine in human muscle bioenergetics: can carnitine supplementation improve physical exercise?
https://pmc.ncbi.nlm.nih.gov/articles/PMC8910660/#B46-ijms-23-02717

15. Efficacy and safety of berberine alone for several metabolic disorders: a systematic review and meta-analysis of randomized clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5839379/

16. Reduced resting skeletal muscle protein synthesis is rescued by resistance exercise and protein ingestion following short-term energy deficit.
https://pubmed.ncbi.nlm.nih.gov/37724991/

17. Very-low-calorie diets and sustained weight loss.
https://pmc.ncbi.nlm.nih.gov/articles/PMC4784653/



How WE are gonna look like this summer:
View attachment 5105610




- A glycogen depleted Menas

Amazing thread
Looks like an article
Will read later bump @ICL
Bookmarked and tag me when you do read it so I remember
 
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Amazing thread
Looks like an article

Bookmarked and tag me when you do read it so I remember
It's peak ngl, will try this after i end my bulk
 
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Reactions: Menas

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