DHA is just a brain nutrient.
In fact, all this originated from 1993, and the World Health Organization (WHO) suggested that DHA should be supplemented in the early growth and development of infants. Subsequently, the recommendation of DHA quickly became the selling point and propaganda point of many health care products. Yang Jian, an early education expert, director of the Children's Development Research Center of Wuhan University and deputy director of the Children's Work Education Committee of China eugenics Association, told the reporter that DHA, whose scientific name is docosahexaenoic acid, is a polyunsaturated fatty acid and a brain nutrient.
To ensure the normal development of the brain, we need a variety of nutrients, such as protein, fat, carbohydrates, vitamins and other substances. In addition, there must be an appropriate amount of trace elements such as iron and zinc. DHA is just one of them, and it has nothing to do with whether you will be smart at the meeting. If DHA can make people smart, do protein, fat and carbohydrates also have such functions?
IQ has nothing to do with DHA.
Zheng Ping, a professor at Fudan Institute of Medical Neurobiology, also believes that it is unscientific to make people's brains smarter just by relying on certain nutrients. According to the principle of human genetics, human intelligence can be inherited to some extent. However, whether a person's intelligence can be brought into full play depends only on his natural high IQ. The nervous system of the human brain is acquired and is also the basis of IQ. Everyone's specific IQ has a great relationship with the development and utilization of his nervous system. A person's IQ depends on the development and utilization of neurons in the nervous system. If it is developed and utilized more, its IQ will be higher and smarter. On the contrary, it is low.
In fact, the puzzle about DHA was completely rejected by the European Food Safety Agency as early as May last year. Since May 26th, 20 1 1 year, our bureau has agreed that docosahexaenoic acid (DHA) can promote the visual development of infants and young children, but it is not allowed to claim that DHA can optimize the brain development of infants and young people.
The European Food Safety Agency also requires the European Food Safety Agency and governments to formulate relevant laws and regulations to prevent manufacturers from abusing DHA labels for promotion.
Taking DHA during pregnancy will not make your baby smart.
Coincidentally, at the end of last year 10, the Journal of the American Medical Association published a paper entitled "DHA optimizes maternal and child development results". The experiment was conducted among 2399 women in Australian maternity hospital, all of whom were pregnant for at least 2 1 week. One group took fish oil capsules rich in DHA (providing 800 mg of DHA every day), while the control group took the same amount of vegetable oil capsules without DHA. The results show that there is no significant difference in the average cognitive or language comprehensive scores of infants delivered by pregnant women between the two groups. That is, scientists believe that taking DHA during pregnancy will not promote the neurological development of babies.
Excessive intake can also have adverse reactions.
In fact, ordinary consumers don't know much about the efficacy of DHA, just listening to advertisements saying that the more DHA a product contains, the more nutritious it is. Recently, in view of the trend that some products are suspected of adding excessive DHA, official website of the Ministry of Health posted a new version of "Food Nutrition Enhancer Standard (Draft for Comment)", which clearly pointed out that the DHA content in formulated milk powder and formulated cream powder (formula powder for children) must be ≤0.5% (percentage of total fatty acids).
Ding Zongyi, chairman of the Children's Health Committee of the Chinese Medical Association and chairman of the Asian Pediatric Nutrition Alliance, said that in fact, most people don't need to supplement DHA when they have a balanced diet. If the intake of DHA exceeds the maximum tolerable intake of human body, it will also cause some adverse reactions. Because from the perspective of nutrient intake alone, any nutrient must be moderate, and excessive intake will break the nutritional balance needed by the human body, but it is unhealthy.
In fact, if scientists can understand the mechanism of intelligence formation, even if they only know half of it, it will be quite easy to explore ways to improve the human brain. Nowadays, people believe some specious suggestions because they don't understand the working mechanism of the brain becoming smarter.