1. Diversified diet: Children need to eat all kinds of foods, including protein, carbohydrates, fats, vitamins and minerals. It is suggested to provide five different colors of vegetables and fruits, as well as appropriate amount of meat, fish, beans and whole grains every day.

2. Control food intake: children eat small and easy to eat, but they are also easy to eat more. Parents should reasonably control their food intake according to their children's age and physical condition to avoid problems such as obesity caused by overeating.

3. Supplement nutrients: If children can't get enough nutrients through diet, they can consider supplementing some nutrients, such as calcium, iron and vitamin D, but parents should supplement them under the guidance of doctors or professionals to avoid excessive or improper use.

4. Pay attention to food safety: children's immune system is not fully developed and is easily affected by food pollution. Parents should pay attention to the hygiene and safety of food, avoid giving their children expired or stale food, and try to choose organic food and food without additives.

5. Establish good eating habits: Parents should cultivate their children's good eating habits from an early age, such as eating regularly and quantitatively, chewing slowly and not being picky about food. These habits can help children develop a healthy lifestyle and prevent various diseases.