DHA does not require additional supplementation. Formula milk contains DHA and EPA, which can satisfy the daily needs of babies and also promote the maturation of retinal photoreceptor cells. DHA is also known as brain gold, belongs to the omega-3 series of unsaturated fatty acids, is to maintain the development of the nervous system cells, a major substance, can help the baby’s brain development, and for the baby’s vision development and maturity also has a certain role in promoting, but the formula milk has been added to the DHA and EPA, generally do not need to take additional supplementation of DHA. Parents are advised to feed their babies under the guidance of neonatologists, and generally do not need to take additional supplements to avoid adding to the financial burden.