Children should eat more foods rich in protein, such as flour, beans, shrimp, crab, shellfish, seaweed, beef, chicken, liver, pork leg, eggs, milk, cheese and dark vegetables. In addition, stewed fish with tofu is also a good choice. Rich in protein, tofu is soft and delicious, and rich in soybean lecithin, which is beneficial to the development of nerves and brains and enhances immunity.