TLDR Higher protein intake might be linked to hair loss.
A transversal case-control study was conducted with 42 patients aged 20 to 35 years who had diffuse alopecia, compared to a control group of 230 individuals without hair and nail disorders. The study evaluated dietary intake of various nutrients using a 3-day method and analyzed the data with SPSS software. The results indicated that only protein intake was directly associated with alopecia, with an odds ratio of 1.5 (1.06 - 2.3) and a p-value of 0.02, suggesting a potential link between protein consumption and the occurrence of alopecia.
5 citations
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October 2021 in “Clinical, cosmetic and investigational dermatology” Japanese patients with alopecia areata often have a higher BMI and consume more vitamin C, fruit, and retinol, which may affect their condition's development or severity.
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June 2020 in “International Journal of Dermatology” Men with early hair loss have lower vitamin D levels.
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January 2013 in “Skin Pharmacology and Physiology” Low iron and vitamin D levels are linked to hair loss in women.
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October 2011 in “Biological trace element research” Low copper levels might cause premature graying of hair.
28 citations
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February 2008 in “PubMed” Low iron levels are linked to more hair loss in non-menopausal women.
2 citations
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January 1976 in “Munich Personal RePEc Archive (Ludwig Maximilian University of Munich)” Sodium and potassium levels in Egyptian scalp hair differ by sex and can aid in legal cases.
