Many weightlifting men are deficient in zinc and magnesium.
A good supplement is helpful.
Zinc is supposed to be good for the hair as well.
Moronic “bodybuilders” wouldn’t need supplements if they’d just eat real food. They’re collectively some of the most unhealthy people I’ve ever met.
Ironically, meat is an excellent source of zinc, including:
Shellfish.
Legumes.
Seeds.
Nuts.
Dairy.
Eggs.
Whole Grains.