January 2026 in “Nutrients” Low vitamin D may increase autoimmune thyroid disease risk, but its treatment effects are unclear.
January 2026 in “Frontiers in Nutrition” Certain dietary supplements can improve hair density and are well-tolerated for treating androgenetic alopecia.
July 2025 in “Humanitarian and Natural Sciences Journal” Low vitamin D and ferritin levels may contribute to hair loss in women.
September 2023 in “Clinical, Cosmetic and Investigational Dermatology” Higher SHBG levels are linked to less severe hair loss in women, but vitamin D levels don't seem to affect hair loss.
207 citations
,
April 2006 in “Journal of The American Academy of Dermatology” Iron deficiency may be related to hair loss, but there's not enough evidence to recommend iron screening or supplements for all hair loss patients.
16 citations
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January 2017 in “DOAJ (DOAJ: Directory of Open Access Journals)” Low levels of vitamin B12 and ferritin are linked to early hair graying.
A boy on a ketogenic diet and anti-epileptic drugs developed skin issues due to stopping vitamin supplements, which improved with proper supplementation.
40 citations
,
January 2010 in “Indian Journal of Dermatology, Venereology and Leprology” Certain diets can affect skin conditions, but more research is needed to understand these relationships fully.
13 citations
,
January 2012 in “International Journal of Trichology” Eating too many paradise nuts for cancer prevention caused a woman to lose all her hair due to selenium poisoning.
7 citations
,
May 1978 in “International Journal of Dermatology” Recent hair loss research shows some progress, especially in understanding male pattern baldness, but effective treatments for many types of hair loss are still lacking.
4 citations
,
January 1989 Hair and nails can indicate selenium levels in the body.
1 citations
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September 2021 in “Gynäkologische Endokrinologie” Hair loss has many causes, so treatment varies.
October 2025 in “International Journal For Multidisciplinary Research” Eating apples regularly can improve heart health and help prevent chronic diseases.
August 2022 in “Italian Journal of Animal Science/Italian journal of animal science” Field bean supplementation improved mohair growth and kid growth in Angora goats but didn't prevent weight loss after giving birth.
100 citations
,
August 2011 in “Journal of Investigative Dermatology” Lack of vitamin D receptor increases skin tumor risk by boosting hedgehog signaling.
51 citations
,
September 2008 in “Journal of Investigative Dermatology” Vitamin D receptor may help protect against UV-induced skin cancer.
14 citations
,
January 2019 in “PubMed” Vitamin D might be involved in the development of alopecia areata and could help in its treatment.
March 2026 in “Nutrients” Vitamin D is needed for metformin to lower prolactin effectively.
41 citations
,
March 2007 in “Journal of dermatological science” Taking L-cystine and vitamin B6 can prevent hair loss caused by smoke in mice.
134 citations
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December 2018 in “Dermatology and Therapy” Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.
18 citations
,
September 2023 in “Nutrition Research Reviews” Higher fiber intake may reduce psoriasis severity, but more research is needed for effective dietary strategies.
October 2024 in “Frontiers in Nutrition” Vitamin D deficiency is common in people with certain types of hair loss, like alopecia areata and female pattern hair loss.
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.
98 citations
,
February 2010 in “Dermatology Online Journal” Vitamin D may help treat hair disorders.
86 citations
,
June 2017 in “Anais Brasileiros de Dermatologia” Antioxidants can benefit skin health but should be used carefully to avoid negative effects.
78 citations
,
November 2005 in “Endocrinology” Hairless protein can block vitamin D activation in skin cells.
68 citations
,
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
,
May 2010 in “Journal of Cellular Physiology” Mice without Vitamin D receptors have hair growth problems because of issues in the hedgehog signaling pathway.
40 citations
,
April 2013 in “Dermato-endocrinology” People with chronic Alopecia Areata often have lower vitamin D levels.
37 citations
,
October 2021 in “Nutrients” Vitamin D might help regulate insulin in the body, but taking Vitamin D supplements doesn't clearly prevent or improve type 2 diabetes. More research is needed.