Breastmilk is still nutritious after 6 months, but the nutrition can no longer fully meet the needs of infant growth and development, after 6 months of infants should also add appropriate complementary foods in addition to breastmilk. After 6 months of breast milk belongs to the mature milk, mature milk also has a certain nutritional value, which contains protein, fat, sugar, and a variety of minerals, such as calcium, iron, zinc, iodine, but also contains a variety of vitamins, such as vitamin A, vitamin K, vitamin C and B vitamins and so on. Various nutrients are easily absorbed by the body, so infants after 6 months still need to eat breast milk. However, 6 months after the rapid growth and development of infants, the demand for nutrients increased, although breast milk is nutritious, but the nutrients can not fully meet its growth and development needs, if you take pure breastfeeding is likely to cause nutritional diseases, such as vitamin D deficiency rickets, iron-deficiency anemia, etc., so it should be gradually added to complementary foods. In summary, after 6 months of breast milk although there is still nutrition, but the nutrients can not meet the needs of infants, in order not to affect their growth and development, food supplementation should be carried out, so that infants gradually recognize and adapt to foods other than breast milk, in order to prepare for weaning in the future.