Children can be breastfed until they are about 2 years old, but they are not simply breastfed until they are 2 years old. Complementary foods can be added appropriately when the child is 6 months old. Generally speaking, breast milk is the most nutritious and precious food for children. The World Health Organization advocates that children should be breastfed until they are about two years old, but they are not purely dependent on breastfeeding because as the child’s body grows, it needs more and more nutrients and has the ability to digest food, so complementary foods can be added gradually to meet the child’s nutritional needs. Because of the differences in the organism, so the child breastfeeding to a few years old will also be different, you can start to add complementary foods in the child 6 months, if the process of adding complementary foods is not smooth, the child’s dependence on breast milk is relatively large, in the child’s first year of age can be considered to wean; if the complementary foods added is relatively smooth, you can let the child to breastfeeding until the age of 2 years old.