What is the primary role of folate in pregnancy?

• A. Prevent neural tube defects.
• B. Increase risk of gestational diabetes.
• C. Provide all daily energy.
• D. Reduce placental blood flow.

Answer: (A)

Folate’s main job in pregnancy is to support DNA synthesis and rapid cell division in the developing fetus, especially in the very early weeks when the neural tube forms and closes into the brain and spinal cord. Adequate folate during this critical period helps prevent neural tube defects such as anencephaly and spina bifida. Because neural tube development occurs early, folate supplementation before conception and in early pregnancy is key. The other options don’t reflect folate’s role: it doesn’t increase gestational diabetes risk, it isn’t a source of daily energy, and it doesn’t reduce placental blood flow.