26 citations
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February 1978 in “Journal of Pediatric Surgery” Long-term TPN in children can cause zinc deficiency, leading to health issues.
5 citations
,
April 2019 in “Journal of Nepal Health Research Council” People with Alopecia areata often have lower vitamin D levels, which may be linked to the severity of their condition.
77 citations
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April 1968 in “Development” Excess vitamin A can cause hair follicles to change into gland-like structures.
January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Vitamin A levels don't significantly affect alopecia areata.
89 citations
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January 2020 in “PubMed” Early detection and biotin treatment improve outcomes for biotinidase deficiency.
12 citations
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September 1997 in “PubMed” Vitamin D could be important for many skin functions and synthetic versions may treat various skin diseases.
November 2025 in “Fayoum University Medical Journal/Fayoum University Medical Journal ” Intralesional vitamin D3 injections can improve vitamin D3 levels and may help treat alopecia areata.
December 2021 in “Dermatology research” Low levels of vitamin B12, ferritin, and calcium are linked to premature graying of hair.
1 citations
,
January 2019 in “Jordan Medical Journal” Zinc deficiency in children can cause skin issues and is often overlooked.
18 citations
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June 1998 in “Circulation” Mild essential fatty acid deficiency can cause health issues and is worsened by low-fat diets.
15 citations
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May 2011 in “Veterinary Dermatology” Vitamin A might be a safe extra treatment for dogs with sebaceous adenitis, but more research is needed to prove its effectiveness.
15 citations
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May 2006 in “Brain & development” Valproic acid may cause hair loss by reducing biotinidase enzyme activity in rats.
Men need essential vitamins like D, B Complex, and A for health, and should consult doctors for personalized advice.
78 citations
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November 2005 in “Endocrinology” Hairless protein can block vitamin D activation in skin cells.
January 2011 in “Guangdong Medical Journal” Low Vitamin D receptor levels in hair follicles may contribute to alopecia areata.
January 2024 in “Biomedical journal of scientific & technical research” Vitamins A, B7, C, D, and E are essential for healthy hair growth and preventing damage.
June 2024 in “Journal of Psychiatry Spectrum” Iron deficiency can cause psychiatric symptoms that improve with proper treatment.
2 citations
,
January 2019 in “International journal of medicine in developing countries” Many people in Majmaah city, Saudi Arabia, don't know much about vitamin D deficiency and don't practice good vitamin D habits, with few linking it to hair loss.
January 2024 in “International journal of chemical research and development (Print)” Low levels of vitamin B12, iron, ferritin, and zinc are linked to hair loss in Iraqi women.
January 2026 in “International Journal of Advanced Biochemistry Research” The dog improved significantly after treatment and needs lifelong thyroid medication.
20 citations
,
January 2019 in “International journal of trichology” People with Alopecia areata often have lower Vitamin D levels, which might affect the severity of their condition.
The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
1 citations
,
March 1982 in “American pharmacy” The Beverly Hills Diet is unhealthy and can cause serious health issues; pharmacists should advise against it and asthmatics should avoid nonprescription antihistamines.
January 2017 in “Indian Dermatology Online Journal” Levothyroxine overdose can cause hair loss, and zinc deficiency might worsen it.
April 2007 in “CRC Press eBooks” Certain vitamins in wrong amounts, alcohol abuse, metals, and other toxins can cause serious brain and nerve damage.
January 2025 in “International Journal of Molecular Sciences” Non-liganded Vitamin D Receptor is crucial for healthy skin and hair.
10 citations
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July 2000 in “PubMed” High calcium in their diet caused zinc deficiency in the goats.
Nutritional deficiencies can cause hair loss, but it can be reversed with a normal diet and less stress.
5 citations
,
May 2007 in “Pediatric Dermatology” Severe hypothyroidism can cause unusual skin problems that improve with thyroid treatment.
May 2026 in “Russian Journal of Skin and Venereal Diseases” Low ferritin and vitamin D levels, past infections, stress, and weight changes can trigger hair loss in women.