Folic acid tablets are a kind of water-soluble B vitamins, which are rich in green leafy vegetables, fruits and animal livers. Folic acid participates in the whole process of human metabolism and is an essential vitamin for synthesizing DNA, an important substance in human body. Its deficiency can not only lead to fetal neural tube malformation, but also increase the deformity rate of eyes, lips, palate, gastrointestinal tract, cardiovascular system, kidneys, bones and other organs, but taking folic acid tablets has side effects:

First, taking folic acid tablets can cover up the early manifestations of vitamin B 12 deficiency, resulting in damage to the nervous system.

Secondly, taking folic acid tablets 350mg may affect the absorption of zinc, which may lead to zinc deficiency, delay fetal development and increase low birth weight infants;

Thirdly, taking folic acid tablets will interfere with the effect of anticonvulsants and induce seizures in patients;

Therefore, taking 400 micrograms of folic acid every day can prevent fetal neural tube malformation. You can stop using it after 3 months of pregnancy.