Infant formula is not recommended to always drink the second stage and not change to the third stage. The two-segment milk powder is specially developed for infants aged 6 to 12 months, which can meet the growth needs of the baby, but it can’t always be given to the child. After one year of age, the baby needs to supplement the nutrients are richer, you can properly replace the three-segment milk powder, and then gradually transition to a normal diet, so as to ensure that the baby’s health, so the baby milk powder is not recommended to drink two segments all the time not to change the three segments. The second paragraph of the milk powder changed to three paragraphs of milk powder, you should pay attention to the number of additional meals from less to more, in the process of replacing the milk powder, pay attention to the baby’s changes, 6 months after the baby, you can gradually supplement the rice flour eggs, pig liver and other complementary foods, gradually enrich the baby’s dietary structure, enhance the digestive system, for the growth and development of the baby to provide a comprehensive, healthy nutrition. To change the milk powder under the guidance of the doctor, do not often change the milk powder for the baby, so as not to affect the baby’s absorption function, or even cause digestive and nutritional disorders.