Foods containing zinc include lean beef, pork, mutton, chicken heart, fish, oyster, egg yolk, skimmed milk powder, wheat germ, sesame, walnut, beans, peanuts, millet, radish, etc. Zinc is mainly found in marine products and animal offal, with little zinc content in other foods.

According to laboratory tests, animal foods generally contain more zinc, about 3-5 mg of zinc per 100 grams of animal foods, and amino acids produced after the decomposition of animal protein can also promote the absorption of zinc. There is less zinc in plant food. Every 100 grams of plant food contains about zinc 1 mg. There are beans, peanuts, millet and radish with high zinc content in various plant foods, and the zinc content in every 100 grams of egg yolk is about 3.4 mg; Kelp is about 3.2 mg; Fish and shrimp are about 8 mg.