Mad Undersøgelser, hvor mad er blevet givet samtidig med zink til raske forsøgspersoner, viser at absorptionen forsinkes signifikant af mange fødevarer (herunder brød, hårdkogte æg, kaffe og mælk).
Food Studies of the co-administration of zinc with food performed in healthy volunteers showed that the absorption of zinc was significantly delayed by many foods (including bread, hard boiled eggs, coffee and milk).