The best foods for zinc supplementation are as follows: 1) Shellfish, such as oysters, scallops and abalone, which are rich in zinc. 2) Red meat, such as lean pork, lean beef and lean lamb, which contain a lot of zinc. 3) Nuts, such as walnuts, hazelnuts, pistachios and pine nuts, which contain a lot of zinc. 4) Cereals, such as barley, wheat, oats and buckwheat, which contain a lot of zinc. Cereals, such as barley, wheat, oats and buckwheat, contain a lot of zinc, especially in the germ.