Exclusively breastfed babies, you can choose to add complementary foods within 4-6 months. If the breastfeeding mother’s breastmilk is sufficient, you can choose to gradually add complementary foods when the baby is 6 months old, and the addition of complementary foods should be from less to more, from fine to coarse, and need to be gradual, you can first add rice flour, fruit and vegetable puree, etc., and to observe the child’s reaction to eating, and then gradually add another kind of food. If breastfeeding mother’s breastmilk is not particularly sufficient, you can add complementary foods or mixed feeding with milk powder when the baby is 4 months old, which can not only reduce the burden of breastfeeding mothers, but also help the baby adapt to complementary foods as soon as possible. For the addition of complementary foods, you can supplement a variety of nutrients for the baby, and as the baby’s age increases, the teeth erupt after the gradual transition to solid food, which is conducive to the exercise of chewing function.