How much Zinc is too much?
Dr. Andrew Weil says: “Dr. Weil recommends adults take 15 mg of zinc daily, or up to 30 mg daily for vegetarians or for those who don’t eat many foods of animal origin. . . . High doses of zinc can actually decrease immunity, interfere with the absorption of copper, leading to copper deficiency, and increase the risk of anemia. Excessive amounts of zinc can also cause nausea, headaches, lethargy, irritability, stomach irritation, and vomiting.