Which nutrient's adequate intake during pregnancy reduces the risk of neural tube defects?

Which nutrient's adequate intake during pregnancy reduces the risk of neural tube defects?

• A. Vitamin C
• B. Folic acid
• C. Vitamin D
• D. Iron

Answer: (B)

Folate (folic acid) is the nutrient that reduces the risk of neural tube defects. The neural tube closes very early in pregnancy, often before a woman knows she’s pregnant, and folate is essential for DNA synthesis and rapid cell division needed for this crucial process. Without enough folate, the neural tube may fail to close properly, leading to defects such as spina bifida and anencephaly. Because of the timing, women who may become pregnant are advised to start folic acid supplementation before conception and continue through early pregnancy. The typical guidance is about 400 micrograms daily, with higher doses in certain risk situations, and by including folic acid in fortified foods or supplements we help ensure adequate intake. Other nutrients like vitamin C, vitamin D, and iron support general health, but they are not linked to reducing neural tube defect risk in the same direct way.

Folate (folic acid) is the nutrient that reduces the risk of neural tube defects. The neural tube closes very early in pregnancy, often before a woman knows she’s pregnant, and folate is essential for DNA synthesis and rapid cell division needed for this crucial process. Without enough folate, the neural tube may fail to close properly, leading to defects such as spina bifida and anencephaly. Because of the timing, women who may become pregnant are advised to start folic acid supplementation before conception and continue through early pregnancy. The typical guidance is about 400 micrograms daily, with higher doses in certain risk situations, and by including folic acid in fortified foods or supplements we help ensure adequate intake. Other nutrients like vitamin C, vitamin D, and iron support general health, but they are not linked to reducing neural tube defect risk in the same direct way.