title: The interaction of zinc and vitamin A: on the logic of supplementing the adequately-nourished.
mesh_terms: D000818:Animals; D005527:Food, Fortified; D006801:Humans; D014801:Vitamin A / Q000378:metabolism*; D015032:Zinc / Q000172:deficiency / Q000378:metabolism*
chemical_list: D014801:Vitamin A; D015032:Zinc