Estimated Serum Vitamin D Status, Vitamin D Intake, and Risk of Incident Alopecia Areata Among US Women
September 2016
in “
Archives of Dermatological Research
”
TLDR Vitamin D levels do not affect the risk of developing alopecia areata.
In a study of 55,929 women from the Nurses’ Health Study over 12 years, researchers found no significant association between vitamin D levels and the risk of developing alopecia areata (AA). Among 133 identified cases of AA, the age-adjusted hazard ratio for the highest versus lowest quartiles of serum vitamin D score was 0.94, and the multivariate hazard ratio was 1.08. These results did not support a preventive role for vitamin D in the risk of developing AA.