Iron-containing foods include: apricots, spinach, cherries, dates, fish, kelp, milk, eggs, seaweed, soybeans, celery, rape, tomatoes, oranges, sesame paste, black fungus, soy products, animal liver, whole animal blood, and livestock and poultry meat. Zinc is mainly found in seafood and animal offal. Other foods contain very little zinc. There is almost no zinc in water, staple foods, and eggs that children love to eat. There are also not many vegetables and fruits that 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, with about 3-5 mg of zinc per 100 grams of animal foods. Moreover, the amino acids produced after the decomposition of animal proteins can also promote the absorption of zinc. Plant foods contain less zinc. Approximately 1 milligram of zinc is contained in every 100 grams of plant foods. Among various plant foods, those with higher zinc content include beans, peanuts, millet, radish, Chinese cabbage, etc.