Taking too much folic acid during pregnancy can affect the blood routine of pregnant women, easily increase the burden on the kidneys of the fetus, and also cause intrahepatic bile duct stones, etc. It is best not to overdose on folic acid and to take folic acid in moderation during pregnancy. It is usually supplemented from the first three months of pregnancy preparation to the first three months of pregnancy so as to prevent fetal neural tube malformation. It is best to take it according to the instructions, or you can take it reasonably under the guidance of your doctor, which is safer. If used improperly, it can have adverse effects. Reasonable supplementation of folic acid has the effect of replenishing blood. It is better to have regular blood tests and if you are anemic, it is recommended to take blood-supplementing foods reasonably. It is better to have regular maternity checkups during pregnancy to see the development of the baby, for example, you can have Down’s syndrome screening and 4D ultrasound checkup during pregnancy. This will determine whether the fetal development is normal or not, and if the fetus is developing normally, there is nothing to worry about.