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[DOI] [PubMed] [Google Scholar] 82.Food and Nutrition Board

They can cause pernicious anemia too

Plus, they are derived from natural plant sources such as yams and soy

HUBERMAN: Melanocyte-stimulating hormone has the effect of stimulating pigmentation of the skin by activating what are called melanocytes that exist within the skin

10.1111/j.1365-2214.2007.00751.x [DOI] [PubMed] [Google Scholar] 44