Breast milk naturally contains DHA and AA, and babies who are breastfed normally generally do not need to supplement DHA and AA preparations. Babies who eat formula milk or complementary food can grind walnuts, almonds, peanuts and sesame seeds into powder, and sprinkle some into it when mixing milk powder and cooking porridge. However, we should pay attention to the choice of high-quality nuts, stale nuts can easily lead to poisoning, and we should pay attention to whether we are allergic when feeding seafood. In addition, edible oil also contains unsaturated fatty acids, and olive oil, blended oil and sesame oil are all good choices.
And if it is artificial feeding, we should also pay attention to the content and proportion of DHA and AA in formula milk. Excessive DHA and AA will have side effects. For example, too high AA can lead to poor eyesight of infants. Inappropriate ratio of DHA and AA in milk powder will lead to low immunity, so it is better to control the ratio of DHA and AA in milk powder at1:2 to approach the ratio of DHA and AA in breast milk (1:1.8).
Babies of different months need different DHA and AA. The Joint Committee of the World Food and Agriculture Organization and the World Health Organization (FAO/WHO) requires that AA and DHA should be 40mg and 20mg per kilogram of body weight per day for full-term infants and 60mg and 40mg for premature infants in infant formula.
It is worth noting that if the content of DHA and AA in the selected milk powder is relatively high but not excessive, it is best not to supplement it. My baby drinks Xubeier milk powder imported from the United States, and the contents of DHA and AA are very high but not excessive, which are the same as those in breast milk, both of which are1:1.8, which is the most favorable for absorption. My baby's intelligence and vision development are quite good.
Extended data
DHA
Promote fetal brain development
During pregnancy, DHA can optimize the composition of phospholipids in fetal brain pyramidal cells. Especially after the fetus is five months old, if the hearing, vision and touch of the fetus are artificially stimulated, the neurons in the sensory center of the fetal cerebral cortex will grow more dendrites, which requires the mother to supply more DHA to the fetus at the same time.
Promote the maturation of photoreceptor cells in retina
DHA not only plays an important role in the development of fetal brain, but also plays an important role in the maturation of retinal photoreceptors. Pregnant women can improve the maturity of nerve cells by ingesting DHA during pregnancy and then transporting it to fetal brain and retina.
Promote the development of brain cells
In the cerebral cortex, DHA is not only the main component of nerve conduction cells, but also the main component of cell membrane formation. Most of DHA will not be digested by gastric juice, but will directly enter the blood and be absorbed by organs such as liver or brain, while EPA and linolenic acid will not be absorbed. The main reason is that DHA can enter brain cells through the blood-brain barrier, while EPA and linolenic acid, both unsaturated fatty acids, cannot be absorbed by the brain through the blood-brain barrier.
Reduce postpartum depression
Research shows that 50-75% of women in our country experience a period of postpartum depression with the birth of their children, and 10%- 15% of new mothers will become very intense, which is called "postpartum depression" by special terms. Postpartum depression will not only seriously threaten the maternal health, but also affect the baby's development, leading to emotional disorders and abnormal behavior of the baby. Adequate DHA can reduce the occurrence of postpartum depression.
Baidu encyclopedia: DHA