September 2018 in “Journal of the American Academy of Dermatology” Elderly patients with CCCA were all African American with low vitamin D, but no iron or zinc deficiencies, and no hormonal imbalances compared to younger patients.
September 2018 in “International Journal of Dermatology” People with alopecia areata often have lower levels of zinc and vitamin D.
January 2022 in “United Research Forum eBooks” Picky eating in children is linked to lower zinc levels and various nutritional deficiencies.
December 2021 in “International Journal of Research in Dermatology” Female pattern hair loss in Saudi women is linked to low iron and vitamin D levels.
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.