46 citations
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April 1971 in “American Journal of Clinical Nutrition” Lack of protein causes hair root damage, but it can be reversed by eating protein again.
2 citations
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September 1971 in “Metabolism, clinical and experimental” Dihydrotestosterone has a reduced effect on muscle-building in people with testicular feminization syndrome, especially after their gonads are removed.
209 citations
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September 2008 in “Dermatologic Therapy” Androgens can both increase and decrease hair growth in different parts of the body.
157 citations
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April 1994 in “Clinical endocrinology” Androgens can cause hair growth in some areas and hair loss on the scalp.
98 citations
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October 2012 in “Dermatologic Clinics” Eating the right nutrients can improve hair health, but taking extra supplements usually doesn't help unless you have a deficiency.