246 citations
,
April 1976 in “Annals of Surgery” Zinc is crucial in nutrition, and its deficiency can cause health issues like diarrhea and hair loss, which improve with zinc therapy.
50 citations
,
May 1985 in “The journal of pediatrics/The Journal of pediatrics” Biotin deficiency in patients on total parenteral nutrition can cause serious symptoms but can be treated with biotin supplements.
April 1980 in “Archives of Dermatology” Zinc deficiency didn't cause visible hair changes in the patient.
26 citations
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May 1984 in “Journal of Parenteral and Enteral Nutrition” Biotin supplements restored hair and resolved symptoms in a woman with biotin deficiency.
31 citations
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February 1983 in “American Journal of Clinical Nutrition” Biotin deficiency can cause hair loss in adults on long-term TPN, but supplementation helps regrow hair.