Zinc mainly exists in marine products and animal offal, and other foods contain little zinc-almost no zinc in water, staple foods and eggs that children like to eat, and not many vegetables and fruits contain zinc.

Lean meat, pork liver, fish, egg yolk, etc. Among them, oysters have the highest zinc content. 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, radish and Chinese cabbage with high zinc content in various plant foods.