When to take folic acid tablets for pregnancy preparation

Folic acid is taken orally from the first trimester of pregnancy to the first trimester of pregnancy, or until lactation if the woman is deficient. Folic acid prevents neural tube defects in the fetus. Neural tube closure in humans occurs between 21 and 28 days after conception. During this period, the need for folic acid is most sensitive. If folic acid is deficient during this period, neural tube defects may occur. Therefore, oral folic acid should be given in advance, generally 0.4 mg per day, once a day. At the same time, pregnant women can eat foods containing folic acid, eat reasonable meals, increase exercise. Maintain the right weight, thus reducing the risk of birth defects. Her husband can also take oral folic acid.