Generally breastfed babies do not need to supplement DHA, if necessary, can be supplemented under the guidance of a doctor. DHA refers to docosahexaenoic acid, breast milk is the safest natural food for babies, within six months of exclusive breastfeeding can provide sufficient nutrients for babies, in the appropriate addition of complementary foods, such as fish, egg yolks, etc., there is no need to supplement DHA. But for insufficient breast milk, baby picky eaters, etc., can be in the doctor’s guidance appropriate supplement DHA. Breastmilk is the safest and most economical food suitable for babies. It is important to help mothers to start breastfeeding within 1 hour after delivery and to insist on exclusive breastfeeding for 6 months, and to advocate breastfeeding for more than 2 years. When the baby is 6 months old, supplemental food can be added appropriately under doctor’s guidance to meet the needs of rapid growth, and child health checkups should be conducted on time to understand the growth and development of the baby.