Adults should be aware that the amount of zinc supplementation is about 50mg per day, which can be supplemented by zinc-rich foods. Zinc-rich foods are preferred over seafood, especially shellfish, such as oysters, scallops, fish and shrimp, which are often richer in zinc. For everyday food easy to eat lean meat, such as lean beef, lean pork and loin part of the lean pork zinc content will be higher. To supplement zinc, you can also supplement some coarse grains, because the bran of coarse grains often contains a lot of minerals represented by zinc, and the effect of zinc supplementation is also very good. If you can also eat nuts, such as walnuts, hazelnuts, pistachios, you can also supplement the body with zinc from plant foods.