DHA is only allowed to be added to milk powder and cream powder, rice and its products, wheat flour and its products, and the upper limit of use is clearly stipulated. It is also required to indicate the words "children's special food". Among them, the upper limit of the consumption of milk powder and cream powder is ≤0.5%, and the upper limit of the latter two foods is 66mg/ 100g, and the consumption is calculated by pure DHA.
efficacy
DHA is an important component of brain cell membrane, which participates in the formation and development of brain cells, plays an important role in the extension of axons and the formation of new processes of nerve cells, and can maintain the normal physiological activities of nerve cells and participate in the formation of brain thinking and memory. It may be related to the promotion of protein synthesis and the growth of nerve cells. ?
Breast milk contains long-chain polyunsaturated fatty acids. It used to be thought that infants might synthesize long-chain polyunsaturated fatty acids from two essential fatty acids, C 18, by elongase and desaturase. However, because the related enzyme system did not play a role in the first month after birth, the artificially fed infants missed the main stage of long-chain polyunsaturated fatty acids accumulation in the brain, and some studies found that the cognitive development score of breast-fed infants was much higher than that of artificially fed infants.
Refer to the above content: Baidu Encyclopedia-docosahexaenoic acid