In the growth and development of infants, the balance of nutrition is very important. Lack of any kind of nutrients is not conducive to the baby's development. Therefore, infants should gradually add complementary food within 4 ~ 6 months. On the premise of ensuring normal milk or infant formula, increasing complementary food for infants is not only conducive to training the baby's occlusal ability, but also conducive to developing a good diet structure and supplementing some nutrition. Vitamin D, which is often not found in milk, is not only related to the development of human bones, but also plays a role in promoting the development of baby's brain and improving the sensitivity of neurons.

Vitamin D content in food is not too high, which is more common in milk, cheese, seafood products, protein food, egg yolk and so on. It is necessary for the baby to supplement it separately. Folic acid tablets, a kind of vitamins, should be familiar to everyone. It not only has the function of preventing neural tube defects in infants during pregnancy, but also relates to the physical and mental health of infants' blood system. In addition, folic acid tablets can promote the IQ development of infants. Common foods: carrots, rape, Chinese cabbage, red grapes, bananas, apples, kiwis and other fresh fruits and vegetables. Soybean lecithin is a kind of human fat, which can improve the capacity, development and memory of the central nervous system and brain.

Before the baby eats complementary food, whether it is milk or baby milk powder, 400 standard units of vitamin D should be supplemented every day from the baby 15 days to promote the absorption of calcium and prevent rickets. At least until the baby is 2 years old. In addition, research shows that before the baby is one year old, many babies lack vitamin D, so if the content of vitamin D in the food eaten by the mother is not very high, or the diet is not very rich, the baby also needs to supplement vitamin D. Vitamin D can prevent night blindness. In fact, dry eye is also related to vitamin A deficiency, and it can also maintain the physical and mental health of hair, teeth and gums. At the same time, vitamin A will continue to promote the transportation, digestion and absorption of zinc.

As we all know, the better source of nutrition for infants and young children is milk, and all kinds of foods can't be compared with milk. The milk metabolized by lactating mothers in different links has different characteristics, and the milk in each link conforms to the baby's physical quality at that time and can give the best nutritional value. DHA is one of the main factors of infant IQ development. Its main source is milk, and DHA, which is often contained in milk, is the best and most easily digested and absorbed by infants. All DHA products sold in the market cannot be compared with DHA often contained in milk.