Zinc citrate - an organic form of zinc with very good assimilability and bioavailability. In one molecule of zinc citrate, zinc ions constitute 34% of the compound’s mass. Therefore, 100 mg of the substance will provide 34 mg of zinc ions. It should be borne in mind when buying dietary supplements, in which only the mass of the whole compound in a portion is provided. Supplementation with zinc in the form of citrate in some people may cause ailments of the digestive system - nausea, appetite drop or stomachache. Zinc in the form of zinc citrate should be best taken between meals, due to the fact that many food products may limit the absorption of this element, especially products rich in phytates, dairy products or fiber.