Fish is one of the pre-pregnancy foods rich in calcium and other trace elements. But not all pregnant women can eat it, such as crabs with high coldness, which pregnant women can't eat. There are many ways to cook fish, and there are also ways to understand it. Try to do it yourself. So what fish can't be eaten if you are pregnant?

What fish can't you eat when you are pregnant?

1, fish with high mercury content. Some fish with high mercury content are not suitable for pregnant women. Mercury is very harmful to human body, which is likely to affect the growth and development of fetal brain and easily lead to deformity of children. For example, shark, mackerel king, swordfish and square head fish all have very high mercury content.

2. Fish in the waters near the chemical plant. The fish in the waters near the chemical plant increase the content of heavy metals such as cadmium, lead and mercury in fish meat, and these polluted fish will endanger the health of pregnant women and fetuses. Heavy metals such as cadmium, lead and mercury are easy to cause poisoning, so pregnant women had better not eat them.

3. Fish with signs of corruption. Fish will decompose to form a large amount of histamine after decay, which will induce a strong allergic reaction, which is not conducive to the health of pregnant women. Therefore, pregnant women must avoid these fish during pregnancy and don't have the idea of throwing them away.

4. Fish cultured in or near paddy fields and ponds. In the process of planting rice, a certain amount of pesticides or insecticides will be applied, and these chemicals will flow into the surrounding ponds with the water, then sneak into the fish and pollute the fish. Moreover, fish have a strong accumulation of pesticides and insecticides and a high tolerance. If pregnant women eat by mistake, it will have adverse consequences.

What to eat when you are pregnant?

If you are in the first trimester, the characteristic of your nutritional needs during this period is that you don't need too many calories, that is, you don't need too much food, as long as you have a balanced diet, ensure the intake of high-quality protein and supplement a small amount of folic acid. If the reaction in the first trimester is very serious and you eat less, and it is difficult to guarantee calories and various nutrients, you can choose some pregnant women's nutrition products such as milk powder or multivitamins and mineral supplements. Generally speaking, pregnant women's milk powder is fortified with vitamins and minerals, but it is usually high in calories. If your daily diet is normal, you don't need to drink more cups of pregnant women's milk powder, otherwise it will easily lead to excessive calories.

In the second and third trimester, the demand for calories and some vitamins and minerals increases. For example, the recommended calcium requirement standard in China is 65,438+0,000 mg per day in the second trimester (4-6 months) and 65,438+0,500 mg per day in the third trimester. An obvious deficiency of China population's dietary structure is that dairy products are consumed less, and many pregnant women seldom drink milk, or even don't drink milk before pregnancy. Dairy products are one of the most important sources of calcium, so the reserves of calcium will be insufficient. Therefore, when choosing nutritional products for pregnant women, in addition to milk and its dairy products, calcium can also be supplemented appropriately. In order to promote the absorption of calcium, you can bask in the sun more or supplement vitamin D preparation.