Children need a variety of nutrients for their growth and development. Here are some nutritious and healthy food suggestions:

1. Protein-rich foods: Protein is an important nutrient necessary for children’s growth and development. Promotes the development of bones, muscles and organs. For example, chicken, fish, beef, beans, nuts, etc.

2. Calcium-rich foods: Calcium is very important for children’s bone growth and can help prevent problems such as osteoporosis. For example, milk, yogurt, cheese, tofu, etc.

3. Vitamin C-rich foods: Vitamin C can promote the absorption and utilization of iron and help improve immunity and resistance. For example, citrus fruits, strawberries, tomatoes, etc.

4. Chlorophyll-rich foods: Chlorophyll can provide rich nutrients, such as iron, calcium, magnesium, etc., which help promote the growth and development of children. For example, spinach, green vegetables, celery, etc.

5. Whole grain foods: Whole grain foods are rich in dietary fiber, vitamin B complex and other nutrients, which help maintain good health and normal functioning of the digestive system. For example, oatmeal, whole wheat bread, brown rice, etc.

In short, children’s diet should be diverse and balanced, and attention should be paid to controlling sugar and fat intake. At the same time, parents should also make personalized nutritional plans based on their children's age and physical condition.