Pregnant women can take either type of folic acid, the recommended size is 0.4mg/tablet, usually 0.4mg once a day. There are no special requirements for the use of folic acid, ordinary folic acid purchased from the pharmacy will do, as the recommended dose is 0.4mg per time, it is therefore recommended to purchase 0.4mg/tablet of folic acid for ease of administration. Active folic acid has a higher absorption rate compared to ordinary folic acid, which is extracted from natural plants, but as far as the effect is concerned, it has the same effect as ordinary folic acid for pregnant women. If a pregnant woman is deficient in folic acid, it may cause a decline in the function of her own body, leading to the occurrence of congenital heart disease, neural tube malformation, limb defects, congenital hydrocephalus and other physiological defects in newborns, so it is recommended to reasonably supplement folic acid. The use of specific drugs need to be under the guidance of a professional doctor, do not judge the use of drugs to avoid danger.