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[DOI] [PMC free article] [PubMed] [Google Scholar] 332.Hollander D, Vadheim CM, Brettholz E, Petersen GM, Delahunty T, Rotter JI

doi:10.1093/ajcn/nqac189

Folic acid deficiency can lead to premature graying and hair loss

They are problems with how the molecule is asked to perform a job it cannot do under topical-only conditions
