The lack of folic acid will lead to the baby's neural tube malformation, but the supplement of folic acid is not the more or the better, large doses of folic acid (folic acid per day more than 1 mg of folic acid) will affect the absorption of zinc and lead to zinc deficiency, and then appear the baby growth retardation, birth weighting addition, large doses of folic acid can mask vitamin B12 deficiency, resulting in irreversible damage to the nervous system.
What are the other ways to safely replenish folic acid in addition to food?
Now the world's more recognized method is a small daily dose of 0.4 mg. Silian folic acid supplement supplements, can effectively prevent the onset and recurrence of neural tube malformations.
According to a 12-year study in China conducted by the National Institute of reproductive health in collaboration with the U.S. Centers for Disease Control and Prevention, women's daily supplementation of 0.4 mg of folic acid in the first and second trimester of pregnancy can prevent the occurrence of 85% of neural tube malformations, and found no adverse effects the findings have been accepted by the World Health Organization, UNICEF and most countries and recommended to women preparing for pregnancy.
Which women should supplement folic acid?
Category 1: women preparing for pregnancy.
Lack of folic acid has been considered and the baby's neural tube malformation, due to the occurrence of this deformity in the first 3 to 4 weeks of pregnancy, to ensure that the female body and maintain a certain level of folic acid reserves, experts recommend: after marriage will start taking Sri Lankan.
Most women have a certain unplanned pregnancy after marriage, and many women at this stage do not know their lack of folic acid, do not know they are pregnant, which may miss a critical period of supplemental Silian folic acid. According to other studies suggest that women after taking Silian folic acid, after at least 4 weeks, folic acid deficiency in vivo can be effectively improved.
Category 2: pregnant women.
Although you start to add folic acid after marriage to prevent the baby's neural tube malformation, but even after 3 months of pregnancy, the baby's neural tube has been closed, the process of replenishing folic acid or continue. Because if the expectant mother lack of folic acid during pregnancy, easily lead to pre-eclampsia, placental abrupt ion incidence increased, there may be due to poor placental development leads to spontaneous abortion. Therefore, folic acid supplementation should be continued, preferably from the beginning of the marriage to the end of the entire pregnancy and lactation.
Category 3: women with megaloblastic anemia.
This type of anemia is different from what we usually call iron deficiency anemia, but is caused by the lack of folic acid in the diet. If the average daily intake of women can not be enough folic acid, easily lead to DNA synthesis is blocked, so that the cell cycle is stopped, so that faster cell proliferation hematopoietic system is affected, in which the rate of formation of red blood cells slows down the most serious, the emergence of megaloblastic anemia, such women once pregnant, prone to baby this category of women must be corrected by supplementing si Lian folic acid megaloblastic anemia. The best way to ensure a daily intake of folic acid:food intake + 0.4 mg Silian folic acid supplements. Folic acid is a very important vitamin for us. But the human body can not synthesize folic acid, must be completely dependent on exogenous supply. Part of the folic acid needs to be supplemented by the natural ingredients in food. The animals liver and kidney, eggs, fish, beans, green leafy vegetables, fruits and nuts are rich in folic acid. However, folic acid is easily oxidized when exposed to light and heat, and 50-95% is destroyed during canning or cooking. And women who are pregnant and ready to become pregnant need folic acid 1 times more than the average adult, reaching 0.6 ~ 0.8 mg / day, so need oral Silian folic acid to fill the lack with food intake. So Silian + tonic is the most effective measure to replenish folic acid.
In addition, the table below lists some food in the amount of folic acid, I believe you will have some help.