Huaishan Lentil and Pork Lean Soup: Ingredients: 60 grams of lean pork, 12 grams each of Huaishan and lentils.

Method: (1) Wash the pork; wash the yam and lentils, and soak them in water for half an hour.

(2) Put all the ingredients into the pot, add an appropriate amount of water, bring to a boil over high heat, simmer for 2 hours, season and serve.

If children are deficient in zinc, their physical and intellectual development will be seriously affected.

Foods containing more zinc include sea cucumbers, fish, kelp and other seafood, as well as eggs, mutton, walnut kernels, pine nuts, sunflower seeds, green onions, etc.