1, the diet should be high in protein: malnourished children should increase their intake of protein and eat more eggs and milk. These foods are rich in high-quality protein, and the lack of high-quality protein in children will also affect their health and brain development.

2, foods rich in vitamins: Usually children should eat more green leafy vegetables and eat more fresh fruits. These foods are rich in vitamins, and the lack of vitamins in children will also affect their health. Lack of vitamins will affect children's gastrointestinal health and physical development.

3. Increase calcium intake: Calcium is an essential nutrient for children's physical development, especially in the rapid stage of children's physical development. Calcium can promote the growth and development of children's bones. The calcium contained in milk is relatively high, and many green leafy vegetables are also rich in calcium.