TLDR Low levels of vitamin B12, ferritin, and calcium are linked to premature graying of hair.
The systematic review and meta-analysis examined serum levels of vitamin B12, iron, ferritin, copper, calcium, and zinc in individuals with premature canities (n = 1791). The meta-analysis revealed significantly lower serum levels of vitamin B12, ferritin, and calcium in those with premature canities, while differences in iron, copper, and zinc levels were not significant. Qualitative analysis indicated that deficiencies in these micronutrients can impact hair melanogenesis, contributing to premature graying.
3 citations,
May 2018 in “Journal of nutritional health & food science” Nutritional supplements can help manage hair loss and promote hair growth by strengthening hair roots and countering harmful effects of pollution, smoking, and deficiencies in vitamins and minerals.
134 citations,
December 2018 in “Dermatology and Therapy” Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.
October 2022 in “Southeast Asian journal of health professionals” Hair greying is seen as a sign of aging; temporary fixes like hair dye are used, but a balanced diet and hair care can help manage it.
2 citations,
January 2019 in “Springer eBooks” The conclusion is that different blood diseases cause specific oral symptoms and require varied treatments to manage these symptoms and improve patient health.
63 citations,
May 2017 in “American Journal of Clinical Dermatology” People with alopecia areata often have lower levels of vitamin D, zinc, and folate, but more research is needed to understand if supplements can help treat it.