August 2024 in “IAHS Medical Journal” Low vitamin D and ferritin levels are linked to female hair loss.
December 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” Redheaded people have higher levels of a vitamin D precursor, suggesting red hair may be an adaptation for better vitamin D synthesis in areas with less sunlight.
January 2019 in “Figshare” Redheaded people have higher levels of vitamin D precursor, suggesting their hair color may be an adaptation to low sunlight areas.
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August 1989 in “European journal of pediatrics” Child with rickets improved with a specific vitamin D therapy, but alopecia did not change.
July 2023 in “Media Dermato Venereologica Indonesiana” Vitamin D supplements should be used cautiously in sarcoidosis patients, with regular monitoring to avoid high calcium levels.