Chicken liver is nutritious and delicious. People can use chicken liver slices to steam rice for their children to prevent night blindness. Some people think that the above-mentioned young women are acutely poisoned by eating chicken liver, and eating too much is nothing more than indigestion, causing gastrointestinal discomfort. Actually, it's not? Eating a lot of chicken liver causes the whole body epidermis to fall off. The chief culprit is vitamin A. Vitamin supplementation should be moderate, but excessive consumption is also harmful. This is a typical case.
Foreign countries have long attracted people's attention, and the liver of domestic animals should not be eaten more. The health department of the British government attaches great importance to it, so it warns pregnant women and lactating women not to eat or eat less animal liver as much as possible.
The cause is that in the 1980s, foreign clinicians repeatedly found that teratomas or teratomas had unknown causes, including cleft lip, cleft palate, ear, eye and urinary tract defects, and a few were central nervous system and thymus hypoplasia. After a lot of follow-up reports, it was finally found that the chief culprit of teratogenesis was that the liver of livestock contained a lot of vitamin A, among which chicken liver ranked first.
According to research, every100g of chicken liver contains vitamin A 509 00 international units; Sheep liver followed by 29 9 00 international units; Bovine liver 18300 international unit; Vitamin a contained in pig liver is 8700 international units; Bovine liver is very low, only 140 international units.
The vitamin a required by women during pregnancy is about 3000 ~ 5000 international units, and should not exceed 6000 international units. If the daily intake reaches 15000 international units, especially in the first three months of pregnancy, it will greatly increase the risk of fetal malformation. It seems that many people think that pregnant women should eat more supplements such as pig liver and chicken liver, and it is necessary to correct them. Otherwise, giving birth to a deformed child will not be worth the loss.
It is also inappropriate for healthy adults to eat too much animal liver at one time. In winter in Guangdong, some people in rural areas are poisoned by eating dog meat, which is actually related to the high content of vitamin A in dog liver, and it is also worth reminding.
In addition, vitamin A enters the baby's body through milk, and the baby is considered to be sensitive to vitamin A, so during breastfeeding, mothers should not eat too much animal liver, nor should they feed their children more animal liver food.
In order to ensure that pregnant women can get the vitamin A they need, experts believe that it is safer to eat more fresh vegetables and fruits rich in beta-carotene, so that they can be absorbed and utilized after being converted into vitamin A in the body, and at the same time, they can absorb vitamins such as folic acid that are necessary for pregnant women, killing two birds with one stone.