Drink more fish soup, an egg and lean meat every day, make up protein, eat more fruits and vegetables, and give him nuts such as walnuts, which can make up the brain. Anyway, the nutrition should be balanced, and give him less snacks. The nutrition of cereals, vegetables, fruits and meat, eggs and milk has its own characteristics. Cereals mainly provide carbohydrates, vegetables and fruits provide vitamins, minerals and dietary fiber, and meat, eggs and milk provide high-quality minerals such as protein and calcium. Therefore, if all kinds of food are balanced, we can get enough nutrition and promote the growth and development of children.