After 4 months of age, iron-rich rice flour and vegetable purees should be added to the child. These foods are not only easy to digest, but also have a better taste and shape. Rice flour is only the basis, which can add vegetable puree, meat puree, broth, etc., but be careful not to add too much seasoning. One, the role of complementary food added complementary food added has two roles, one is to add nutrients to make up for the lack of simple dairy products to promote healthy growth of children; the second is to train children’s gastrointestinal tract function, chewing and other physiological functions. The first of these is very important. Therefore, the earliest complementary foods added should be related to the nutrient needs of children growing to 4-6 months of age. Therefore, after 4 months of age, iron-rich rice flour and vegetable puree should be added to the child. These foods are not only easy to digest, but also have a better taste and shape. Rice flour is just the base, to which you can add vegetable puree, meat puree, broth, etc., but be careful not to add too much seasoning. As for exercising the child’s chewing ability, that must wait until the child’s molar teeth grow out. Otherwise, chewing is difficult to complete. Second, the time to add complementary foods should be added to the full 4-6 months, should be the earliest from the full 4 months (that is, the fifth month) to start. Even if breast milk is very adequate, full 6 months to start adding complementary foods. Adding complementary foods too early can easily cause allergies and abnormal bowel movements. Parents are expected to trust that their breast milk is nutritious enough for their child to enjoy for at least 4-6 months. Note: 4-6 months is the adaptation stage of complementary food addition. The implication is that you should not force your child to eat too much. Encourage your child to take an interest in eating, and never force your child to do so, as this may cause a psychological burden. The World Health Organization recommends adding complementary foods after 6 months of age because the gastrointestinal tract of small infants is still immature and adding complementary foods too early can easily cause gastrointestinal allergic reactions. Of course, there are differences in the development of each child, the child is fully equipped to add the conditions of complementary foods can be added, but the earliest can not be earlier than 4 months, the latest can not be later than 8 months. Third, the order of adding complementary foods The principle of adding complementary foods should be gradual. The amount of complementary foods added should be gradually increased. The indicator of increase is the child’s acceptance, not the subjective intention of parents. After 4 months of age, the best starting complementary food should be infant nutritional rice flour (by implication, plain rice flour). Infant nutritional rice flour is the best first supplement, which has been fortified with calcium, iron, zinc and many other nutrients, while other supplements do not contain a full range of nutrients. This way the child can get a more balanced nutrients, and the gastrointestinal burden will not be too heavy. Several principles of complementary food addition: 1, from the type to the number of small to large; 2, each new food to be observed for at least three days, whether there are allergies and other intolerances; 3, based on rice flour, gradually enrich; 4, gradually close to their own family’s dietary habits, do not copy “others” or foreign experience; 5, based on the baby’s adaptation to the status of The growth status is the gold standard for evaluating the suitability of complementary foods. It is not recommended to give infants juice, not because the nutrition is not good, but the infants who are used to drinking juice will not accept plain water, which is not good for future dental protection. You can give your child fruit purees after adding complementary foods. This way you can receive the nutrition of fruit without causing possible future damage to the teeth. Insist on giving the baby plain water and make it a habit. Then again, complementary foods should not be added until 4-6 months after birth. Juice is also a complementary food.