During pregnancy as your uterus expands, the placenta develops, your body circulates more blood, and the fetus grows.
Folic acid is important for a healthy pregnancy.
Folic acid decreases the risk of some birth defects. It lowers the risk of birth defects such as neural tube defects, heart and limb defects, urinary tract anomalies, narrowing of the lower stomach valve, and oral facial clefts like cleft lip and cleft palate.