Wen | Jingma
Professor Croft of the British Brain Nutrition Institute and Professor Ao Yu Zhanmei, a famous Japanese nutritionist, first revealed the mystery of DHA, and their research results show that DHA is one of the important substances for human brain development and growth.
DHA its scientific name is docosahexaenoic acid, in our daily food only fish food contains more abundant, other meat, vegetables and fruits, almost do not contain DHA!
So we'll find that people who live by the beach seem to be smarter, and that's because they eat fish a lot, and the fish have a rich DHA in them.
The expert consensus on maternal and infant supplementation in China recommends that mothers should supplement 200 mg of DHA per day during pregnancy and lactation, while children need 100 mg of DHA per day before the age of two.
How can the DHA that moms need to be better supplemented?
That is, it is recommended to eat marine fish 2 to 3 times a week, the amount of marine fish per week is at least 350 mg or more, and you can also eat some freshwater fish in addition to eating marine fish, and there is also a certain amount of DHA in freshwater fish.
It is true that eating fish when the mother is pregnant can not only supplement the DHA, but also the fish is more delicious and easy to digest.
Fish is nutritious, but when choosing, mothers should avoid 4 kinds of "poisonous fish"
Category 1: Fish near chemical plants
Fish that live near chemical plants, because the sewage discharged from chemical plants will flow into rivers, these fish live in a polluted environment for a long time.
So it is easy to accumulate a variety of mercury, benzene and other toxic and harmful substances, if the mother eats these fish, although you can ingest a small amount of fish, but the body may take more mercury benzene, these are not conducive to good health of heavy metals.
Category 2: Fish that live in rivers next to farmland
When I was very young, the farmland in the family was regularly used to catch insects and weeds, because there was no pesticide and no herbicide at that time.
But now that the living conditions are better and science has developed, there are various herbicides and insect repellents.
These various chemical agents can sweep away the grass in our farmland and kill the insect pests, but they will also pollute the rivers that irrigate the farmland next to them.
If there are fish in these rivers, it is recommended that mothers do not eat them, because they will have various pesticide residues in their bodies.
Category 3: Fish after the Flood
I remember that when I was a child, there was a big flood in my hometown, and then my brother directly picked up a lot of fish on the side of the road in front of his home.
I came home and made a fish dinner, but after I ate it, I remember having diarrhea and pulling for several days.
At that time, I thought that I was cold, but later I learned that there were many germs in the flood, and even various polluted things, and if the fish survived in the flood, these toxic and harmful substances would also accumulate in the body.
Category 4: Fish with a relatively high mercury content
We often say that "big fish eat small fish, small fish eat shrimp rice".
In fact, there is also a food chain in the marine world, and the average small fish may eat some small shrimp or seaweed, but the big fish will eat the small fish directly.
For example, ferocious sharks, swordfish, swordfish, squarehead fish and other fish, because they often like to eat small fish, so they are also the top of the biological chain.
It is precisely because of the top of the biological chain that all kinds of mercury in the ocean easily accumulate in their bodies.
The U.S. Food and Drug Administration has reminded that some fish are relatively high in mercury and are not recommended to eat, especially pregnant women during pregnancy, if you eat these fish with high mercury content, it will not only affect your own health, but even affect the health of the fetus.
Therefore, mothers eat more fish during pregnancy to supplement DHA, which can indeed make their brains respond faster, prevent "pregnancy stupidity", and also help the brain development of the fetus, but the above four types of poisonous fish should pay attention to avoid eating, otherwise it is not conducive to brain development.
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