dha children should be supplemented as needed, and can be appropriate for children who have been weaned and are not fish eaters. dha, also known as brain gold, is a very important kind of polyunsaturated fatty acids, and the brain and retina of the close relationship between the infant’s intelligence and vision development has an important role. dha can not only enhance memory and thinking ability, improve intelligence, but also can improve children’s visual sensitivity, help children earlier understanding of the world, due to children in the very rapid stage of growth and development, and the human body can not synthesize its own dha, so it should be supplemented according to need. For eating breast milk or formula for infants generally do not need additional supplementation, but for has weaned or do not like to eat fish for children can be appropriate supplementation dha, but also want to pay attention to dha eat too much will increase the burden on the body, also best in the guidance of the doctor supplementation.