3 citations
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February 2022 in “Journal of the American Academy of Dermatology” Black patients with a specific type of hair loss have a much higher chance of lacking enough vitamin D.
December 2022 in “Journal of The American Academy of Dermatology” The authors maintain there is a significant link between vitamin D deficiency and central centrifugal cicatricial alopecia in Black patients, and call for more research on the topic.
Children with alopecia areata often have low vitamin D, especially if they have darker skin, it's not summer, or they're not White.
January 2019 in “Egyptian Journal of Dermatology and Venereology /Egyptian Journal of Dermatology and Venerology” Low vitamin D levels might indicate more severe hair loss in alopecia areata patients.
March 2025 in “Yemeni Journal For Medical Sciences” Most female students in Aden, Yemen, have low vitamin D levels, causing health issues.