What are the contraindications to eating folic acid?

Folic acid is a natural supplement to folic acid. It is a natural supplement to folic acid. It is recommended that folic acid should be taken to prevent the consumption of folic acid. If folic acid is taken, it is recommended to stop taking folic acid immediately and go to a regular hospital for relevant examinations. Women need to take folic acid tablets under the guidance of a doctor three months before pregnancy, and eat them until three months after pregnancy, which can effectively prevent the fetus from showing cardiovascular abnormalities.