How to determine wether possible mineral deficiency is copper, iron, or magnesium

[Pei]

My hair thin and sticks up

 

[Deleted member 16677]

blood test or other sypmtoms

 

[Deleted member 19766]

bump

 

[normie_joe]

Don't take random supplements like zinc, cause taking zinc offsets your copper levels, causing other problems.

Blood test if you think you are deficient in something.