It is necessary for infants to take DHA, which has a very great role in the development of the baby’s brain, nervous system and bone development. DHA is an unsaturated fatty acid, also known as brain gold, for the baby’s nervous system development as well as brain development has a vital role, generally in the birth of about three months of the baby can begin to take DHA. 0 ~ 3 years old infants and young children daily recommended intake of DHA 100mg. 1. If you want to supplement through food, breastfeeding babies can let their mothers eat 1~3 times a week of deep-sea fish, and babies who begin to eat complementary foods can eat more deep-sea fish when eating complementary foods, which are also relatively rich in DHA. 2. If it is difficult to eat deep-sea fish and other DHA-supplemented foods in your daily diet, you can also take supplements directly. All of the above medications should be used under the guidance of a doctor, so avoid self-medication.