What is the recommended daily intake of folic acid for women planning pregnancy?

• A. 400-800 micrograms daily preconception and through early pregnancy; higher doses (1 mg) may be recommended for high-risk individuals.
• B. 50-100 micrograms daily throughout pregnancy.
• C. 1-2 grams daily during preconception.
• D. 2-3 milligrams daily only after conception.

Answer: (B)

Adequate folate before and in early pregnancy is crucial to reduce the risk of neural tube defects, which occur very early in fetal development, often before a woman knows she’s pregnant. The recommended daily intake for women planning pregnancy is 400 to 800 micrograms (0.4–0.8 mg) of folic acid, started at least one month before conception and continued through the first 12 weeks of pregnancy. For women at higher risk—such as those with a prior neural tube defect pregnancy, diabetes, certain epilepsy medications, or obesity—a higher dose is often advised, typically around 1 mg daily, and in some situations up to 4 mg daily in the periconception period. Food alone often isn’t enough to reach these protective levels, so a folic acid supplement is important.

Choices with much lower amounts (50–100 micrograms) don’t provide enough folate to offer the same preventive effect. Very high doses (1–2 grams) are not standard practice and can be unsafe. Taking higher amounts only after conception misses the critical early window when the neural tube is forming.