vratisevojvodo
My Dad is a War Criminal
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I used to drink coffee regularly until I figured that it increases estrogen. Since I do not want to become a woman I try to not drink it now. While coffee has a variety of alkaloids and compounds, the most abundant and significant one is definitely caffeine. Caffeine is metabolized chiefly by liver enzyme CYP-1A2 and is a pretty strong inhibitor of it. CYP-1A2 is unfortunately also the chief metabolic enzyme for estradiol. CYP-3A4 is the chief metabolic enzyme for testosterone.
Now, usually there is no reason to think twice about liver interactions. However, many of us drink 2 tablespoons instant coffee with milk, 2 or 3 times a day, and soda, for at least some 0.7 grams of caffeine a day. Correct me, but that means we are displacing some 0.35grams of estrogen from degradation (more or less depending on affinity to the CYP enzymes). Drinking just 2-3 cups coffee every day is not much different than taking a full month of women's contraceptives. And what is really upsetting is that liver enzymes do not rapidly upregulate- they do, but extremely slowly if at all.
I may try this when I'm older: Abstain from coffee and caffeine for a month, and go to some doctor to get a blood test of my estrogen levels, testosterone levels, cortisol levels, cholesterol, etc.. Then for a month I will drink instant coffee like twice a day and maybe a grande starbucks mocha like once a day, and after the month take the same blood test and see if estrogen levels are elevated.
Coffee is known for increasing estrogen dramatically in women, I am sure that this is by the CYP mechanism I am talking about and would be equivalent in men.
Now, usually there is no reason to think twice about liver interactions. However, many of us drink 2 tablespoons instant coffee with milk, 2 or 3 times a day, and soda, for at least some 0.7 grams of caffeine a day. Correct me, but that means we are displacing some 0.35grams of estrogen from degradation (more or less depending on affinity to the CYP enzymes). Drinking just 2-3 cups coffee every day is not much different than taking a full month of women's contraceptives. And what is really upsetting is that liver enzymes do not rapidly upregulate- they do, but extremely slowly if at all.
I may try this when I'm older: Abstain from coffee and caffeine for a month, and go to some doctor to get a blood test of my estrogen levels, testosterone levels, cortisol levels, cholesterol, etc.. Then for a month I will drink instant coffee like twice a day and maybe a grande starbucks mocha like once a day, and after the month take the same blood test and see if estrogen levels are elevated.
Coffee is known for increasing estrogen dramatically in women, I am sure that this is by the CYP mechanism I am talking about and would be equivalent in men.
NIH Study shows caffeine consumption linked to estrogen changes
Moderate caffeine intake associated with higher level for Asians, lower for whites.
www.nih.gov