Children with alopecia areata often have low vitamin D, especially if they have darker skin, it's not summer, or they're not White.
20 citations
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June 2020 in “Journal of Advanced Research” High-dose vitamin A and E with zinc improved blood sugar control and insulin function in diabetics, but may cause hair loss.
124 citations
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August 1990 in “British Journal of Dermatology” Diffuse alopecia in women may be related to androgens and iron deficiency, and basic hormone and nutrient screening is useful.
5 citations
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January 2006 in “Journal of obstetrics and gynaecology” Metformin can cause hair loss in some women with PCOS.
3 citations
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January 2017 in “Indian journal of health sciences and biomedical research KLEU” Low iron levels are significantly linked to hair loss in women.
May 2026 in “Preprints.org” The nutrient combination improved hair condition and was safe for women with diffuse hair loss.
March 2026 in “Nutrients” Vitamin D is needed for metformin to lower prolactin effectively.
October 2025 in “Pakistan Journal of Health Sciences” Low serum ferritin is linked to hair loss in women.
October 2023 in “Journal of Preventive Diagnostic and Treatment Strategies in Medicine” Low ferritin and Vitamin D levels may cause hair loss after COVID-19.
A gluten-free diet and removing the parathyroid adenoma helped a girl with coeliac disease and high calcium levels start puberty.
215 citations
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September 2003 in “Journal of Biological Chemistry” Vitamin D receptor and hairless protein are essential for hair growth.
140 citations
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April 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzyme 25 Hydroxyvitamin D 1 α-Hydroxylase is essential for healthy skin and recovery after skin damage.
139 citations
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September 2001 in “The journal of investigative dermatology/Journal of investigative dermatology” Mutations in the Vitamin D receptor gene can cause hair loss similar to mutations in the Hairless gene.
100 citations
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August 2011 in “Journal of Investigative Dermatology” Lack of vitamin D receptor increases skin tumor risk by boosting hedgehog signaling.
78 citations
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November 2005 in “Endocrinology” Hairless protein can block vitamin D activation in skin cells.
76 citations
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January 2010 in “Journal of bone and mineral metabolism”
71 citations
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August 2019 in “The journal of sexual medicine” Testosterone treatment effectively causes male physical development in transgender male adolescents but may lead to side effects like acne, higher BMI and blood pressure, lower good cholesterol, and decreased bone density.
68 citations
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May 2021 in “Endocrine” People with diabetes or obesity should manage their conditions carefully as they have a higher risk of severe COVID-19.
53 citations
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May 2010 in “Journal of Cellular Physiology” Mice without Vitamin D receptors have hair growth problems because of issues in the hedgehog signaling pathway.
52 citations
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October 2016 in “Clinics in Dermatology” Some medications can cause acne, and stopping these drugs is the main treatment.
43 citations
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March 2009 in “Journal of Cellular and Molecular Medicine” TGF-β2 plays a key role in human hair growth and development.
32 citations
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December 2017 in “Journal of the American Academy of Dermatology” Alopecia areata patients often have low vitamin D levels.
32 citations
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July 2012 in “Stem Cells Translational Medicine” Vitamin D3 can help improve hair growth by enhancing the function of specific skin cells and could be useful in hair regeneration treatments.
32 citations
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January 2006 in “Liver transplantation” Vitamin A toxicity can cause severe health issues and may require a liver transplant if other treatments fail.
28 citations
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November 2019 in “Frontiers in Endocrinology” Vegetarian Indian women with PCOS have higher inflammation levels than non-vegetarians.
25 citations
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August 2014 in “Endocrinology” Researchers created a mouse model of a type of rickets that does not cause hair loss.
24 citations
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June 2010 in “Clinics in Dermatology” Taking too many vitamin and mineral supplements can cause serious health problems.
24 citations
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July 1987 in “Dermatologic Clinics” Systemic diseases can cause hair loss, which is often reversible with treatment.
18 citations
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March 2016 in “Journal of Investigative Dermatology” Vitamin D and calcium are essential for normal hair growth.
18 citations
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January 2015 in “Journal of obesity and weight loss therapy” Eating less starch and dairy helped overweight women with PCOS lose weight and improve symptoms.