82 citations,
April 1981 in “Clinical endocrinology” A girl with rickets and hair loss was found to have a rare condition where her body didn't respond to vitamin D treatment.
November 2003 in “Journal of Investigative Dermatology” Topical Imiquimod may fight vascular tumors by affecting blood vessels or the immune system, low iron might be linked to some hair loss, removing the top skin layer helps vitamin C get in, genetic testing helps diagnose skin conditions, and too much iron could worsen skin inflammation.
July 1974 in “Archives of dermatology” The woman's widespread skin condition did not improve despite various treatments.
119 citations,
July 2016 in “Annals of the New York Academy of Sciences” Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.
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.