Folic Acid in Pregnancy: What, Why, How, and What If

What: Folic acid is a form of vitamin B9 used before and during pregnancy to support cell growth, DNA synthesis, and the healthy formation of your baby’s neural tube.

Why: Adequate folic acid intake—ideally 400–800 micrograms daily starting at least one month before conception and through your first trimester—reduces the risk of neural tube defects (such as spina bifida), supports rising blood volume, helps prevent anemia, and may lower preterm birth risk.

How: Combine a daily prenatal supplement with folate-rich foods like leafy greens (spinach, kale), legumes (lentils, chickpeas), and fortified whole-grain cereals. Build simple habits: take your vitamin with breakfast, set phone reminders, use a pill organizer, and batch-cook folate-packed meals (spinach–lentil soup or kale–quinoa salad) to keep nutrition on hand. Around 10–12 weeks, ask your provider about serum or red blood cell folate testing to ensure levels are on track.

What If: Skipping folic acid raises the chance of neural tube defects, anemia, and early labor. If you have a history of neural tube–affected pregnancy, take medications that affect folate metabolism, or carry multiples, your provider may recommend higher doses or more frequent monitoring. For further guidance, turn to resources such as the American College of Obstetricians and Gynecologists (ACOG), the NIH Office of Dietary Supplements, or a registered dietitian specializing in maternal health.