Little babies can properly supplement DHA, can help supplement the body nutrition, promote normal growth and development, to ensure good health, but pay attention to reasonable supplementation, to ensure the safety of the baby. DHA belongs to a kind of unsaturated fatty acid, has the role of supplementing brain nutrition, promote the development of nerve cells, etc., the baby proper supplementation of DHA on the growth and development of a certain role in promoting. However, do not blindly supplement, to consult the doctor in detail, through a detailed examination, etc., clear whether the baby’s body lacks the case to give symptomatic supplementation, to ensure that the baby supplementation is reasonable and safe. It is recommended that the baby supplement DHA at the same time, to strengthen the daily supplemental food structure adjustment, eat more rich in protein, vitamins and trace elements such as complementary foods, such as eggs, milk and lean meat, etc., and at the same time every day to take the baby to the outdoor activities, more sunshine, etc., will help to supplement the full absorption and utilization of DHA.