Growing a child requires supplementation of vitamin A and vitamin D, etc. 1. Vitamin A: Not only does it play an important role in vision development, it also plays an active role in promoting bone growth in infants and young children. Vitamin A deficiency in infants and young children will cause degeneration of bone tissue, thus affecting the absorption of calcium. Therefore, supplementing vitamin A can promote the bone development of infants and children, and achieve the purpose of growing up. Vitamin A can be supplemented by moderate consumption of foods rich in vitamin A, such as animal liver and carrots. 2. Vitamin D: also known as anti-rickets vitamins, can regulate calcium metabolism, is one of the essential nutrients for the growth and development of the body. Vitamin D deficiency can lead to rickets, supplementation of vitamin D can ensure that the calcium in food is fully absorbed, thus promoting growth. It can be supplemented through proper sunlight, moderate consumption of fish, animal liver and so on. In conclusion, growth requires supplementation of a variety of nutrients, in addition to vitamin A, vitamin D should be supplemented with calcium, phosphorus, high-quality protein and so on. If necessary, you can consult a doctor and need medical help. The above medication should be taken in accordance with the doctor’s prescription.