The classification of vitamin A belongs to the type of fat soluble vitamins.There are two kinds of vitamin a one is vitamin a.

　　A1, the other is vitamin A2.The first-class vitamins are generally found in the livers of mammals and saltwater fish, which are rich in vitamins, while the second-class vitamins are often found in the livers of freshwater fish.However, the first-class activity of vitamins is relatively low and does not have much effect on human body.So the daily reference to vitamin a refers to vitamin A1.Vitamin A is a very important substance in human body, but it cannot be synthesized by human body itself.This kind of nutrient is very important for life during pregnancy, and it also plays a key role in the growth and development of human body.Vitamin A is used in the development of fetus and the maintenance of normal condition of expectant mother, because vitamin A can promote the growth and development of human body and help human body improve its immunity.Therefore, sufficient amount of these nutrients should be added during pregnancy to help the fetus develop physically.Vitamin A in the body can maintain normal vision and epithelial tissue health.Vitamin A is used for epithelial tissue repair after human body injury or when the expectant mother accidentally scratches.Therefore, if the mother lacks vitamin A, the repair function will become slow after the injury.

　　The fetus needs vitamin A in the process of development, especially from the second and third trimester of pregnancy, the development of the fetus is very rapid.If vitamin A is not added in sufficient quantity at this time, it will lead to the possibility of fetal dysplasia and stillbirth in severe cases.After reducing this kind of nutrients during pregnancy, the fetus will not be able to develop normally, which will lead to some abnormal changes in the development of the central nervous system, cardiovascular system and urogenital system.May lead to congenital malformation of the fetus.In particular, some mothers-to-be who are physically weak will cause danger to themselves and the fetus if they lack some nutrients during pregnancy.When vitamin A is seriously deficient, it will even seriously affect the development of the fetus's eyes and cause damage to the expectant mother's eyes.

　　Although the lack of progestin A during pregnancy will not result in 100% of these possibilities, in order to avoid an increase in the probability of these possibilities.Therefore, during pregnancy, one must follow the diet rule to avoid the irreversible consequences caused by the lack of a certain nutrient.So let's take a look today. There are some things that should be paid special attention to when vitamin A is added during pregnancy.

　　(1) to avoid excessive

　　Vitamin A is very important to the fetus and the expectant mother during pregnancy. It is also a necessary element that the human body cannot synthesize itself. It is a kind of nutrient substance to be obtained from food.Although there are many benefits to human body, too much intake will also cause burden and injury to human body.If the expectant mother takes too much vitamin A during pregnancy, it will affect the fetus and the expectant mother.Excessive intake of vitamin A results in the body unable to carry out normal metabolism.It will make the accumulation of vitamin A in the human body more and more, or the one-time vitamin A supplement is too large, it is easy to make expectant mothers suffer from vitamin A poisoning.After the mother-to-be is poisoned, it will cause a series of reactions.The life of the fetus during pregnancy depends on the expectant mother. If the expectant mother suffers from adverse conditions or diseases, it will affect the fetus.According to some studies, if the expectant mother ingests excessive vitamin A during pregnancy, that is, the daily intake of vitamin A is more than 10,000 international units, the probability of physical defects in the fetus will increase, which will lead to the probability of cleft lip, ear, eye and urinary system defects.When these things happen to the fetus, the expectant mother will feel very uncomfortable.Therefore, in order to avoid these situations, expectant mothers should also take vitamin A according to their own conditions during pregnancy.Do not use a large amount of vitamin A once and do not take excessive vitamin A content for a long time.Avoid irreparable consequences for the fetus and the expectant mother.If the expectant mother does not know exactly how much vitamin A should be added during pregnancy, she can go to the hospital to check and let the doctor make it according to your situation, which is in line with the plan of vitamin A supplement for your pregnancy life.

　　(2) Fat

　　I believe fat is a very annoying word for most women.Every woman basically wants to reduce her own fat.But don't underestimate fat, which is also very important for a woman's own health.Fat is a very important component of human body. The cell membrane of every human body is composed of fat as the main structure.But without fat, it is very difficult for the human body to form.Apart from the fact that most of the energy in daily life is provided by sugar, fat also provides about 30% of the energy to the human body, which plays a very important role in the normal physiological activities of the human body. Without the energy provided by fat, the human body would have difficulty in maintaining the normal operation of life.Like some girls with anorexia, they are basically in a state of skin and bones, and their body fat content is very low.These women are more difficult in their daily life. A little exercise or walking will make them feel very tired, and their bodies will be relatively weak.Women like this are very unhealthy.During pregnancy, fat is also very critical for expectant mothers, especially when vitamin A is supplemented, fat can help human body absorb and metabolize vitamin A.Because vitamin A is fat soluble and fat is the carrier of fat soluble vitamin A, if the human body does not take in fat when supplementing fat soluble vitamins, then these fat soluble vitamins cannot be metabolized and absorbed by the human body, thus affecting the normal metabolism of the human body, reducing the immune function of the human body and the occurrence of vitamin A deficiency.So don't underestimate the benefits of fat to the human body.Although fat is also good, being overweight can also cause harm to the human body, so expectant mothers need only keep a balanced weight.

　　(3) the way of supplement

　　The vitamin A content should be stored for the fetus as well as for the fetus, so during pregnancy, the vitamin A content required by the expectant mother every day is higher than that of the average person, and the vitamin A content supplemented by the expectant mother is also different with the changes in different pregnancy periods.Generally, the vitamin 广州助代怀孕双胞胎 A intake of expectant mothers in early pregnancy is about 2,640 IU, while the daily vitamin A intake of expectant mothers in the second and third trimesters of pregnancy is about 3,000 IU.In addition to the vitamin content chosen according to different pregnancy periods, expectant mothers should also choose the intake amount according to their own conditions, but it is best that the intake amount should not exceed 10,000 international units a day.When mothers-to-be supplement vitamin A, it is best to choose food supplement. The vitamin A content in animal viscera, egg yolk, carrot and other foods is relatively high. Mothers-to-be can choose suitable foods to eat according to their own conditions and preferences.If the 广州试管助孕 vitamin A content can be supplemented by food, then no drug supplement is required.

　　(4) What is good for vitamin A supplementation

　　Vitamin A belongs to fat-soluble vitamins, so expectant mothers should properly take in some fat when supplementing vitamin A.Because fat is the carrier of vitamin A, it can promote vitamin A absorption and metabolism.At the same time, when vitamin A is supplemented, expectant mothers can also eat some foods rich in antioxidants such as vitamin E and lecithin, because these foods are very beneficial to vitamin A absorption and can be supplemented together with vitamin 广州助孕包性别费用 A.

　　Vitamins are essential nutrients for human body. If there is a lack of vitamins, the society will affect the growth and development of fetus and the eyes of expectant mothers.Therefore, vitamin A supplementation must be carried out properly during pregnancy, but the amount of vitamin A supplementation should also be paid attention to, and the amount of vitamin A supplementation should not exceed 10,000 international units a day.The best way for expectant mothers to supplement vitamin A is to choose vegetable foods.Vitamin A in plants is relatively easy to absorb and metabolize and will not accumulate in the body.Ok, so that's the end of today's content. I hope I can help you after reading this article.If you have any different opinions or questions, you can leave your questions in the comments section below.

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