What is the recommended daily folic acid supplementation for women of childbearing age to reduce neural tube defects?

What is the recommended daily folic acid supplementation for women of childbearing age to reduce neural tube defects?

• A. 0.4-0.8 mg daily
• B. 2-3 mg daily
• C. 0.05 mg daily
• D. No folic acid recommended

Answer: (A)

Neural tube closure occurs very early in pregnancy, so ensuring enough folate around conception reduces risks of neural tube defects like spina bifida and anencephaly. For most women of childbearing age, the recommended daily folic acid intake is 400 micrograms (0.4 mg). Some women with higher risk factors—such as a prior pregnancy affected by a neural tube defect, certain anticonvulsant medications, or diabetes—should consider up to 800 micrograms (0.8 mg) daily. This is why the range 0.4–0.8 mg daily best fits the guidance. Higher doses (2–3 mg) are reserved for specific high-risk cases, while 0.05 mg or no supplementation falls short of current recommendations.

Neural tube closure occurs very early in pregnancy, so ensuring enough folate around conception reduces risks of neural tube defects like spina bifida and anencephaly. For most women of childbearing age, the recommended daily folic acid intake is 400 micrograms (0.4 mg). Some women with higher risk factors—such as a prior pregnancy affected by a neural tube defect, certain anticonvulsant medications, or diabetes—should consider up to 800 micrograms (0.8 mg) daily. This is why the range 0.4–0.8 mg daily best fits the guidance. Higher doses (2–3 mg) are reserved for specific high-risk cases, while 0.05 mg or no supplementation falls short of current recommendations.