Which vitamin is recommended for all women of childbearing age to reduce the risk of neural tube defects such as spina bifida?
Correct Answer: D
Rationale: Folic acid is the correct answer. All women of childbearing age are recommended to take folic acid to reduce the risk of neural tube defects such as spina bifida in their offspring. Neural tube defects occur in the early stages of pregnancy, often before a woman even knows she is pregnant, which is why it is important for all women of childbearing age to ensure they have adequate folic acid intake. Folic acid is a B vitamin that helps the body make new cells and plays a crucial role in the development of the baby's neural tube, which eventually becomes the brain and spinal cord. Adequate folic acid intake before and during pregnancy can significantly reduce the risk of neural tube defects. That's why it is recommended for all women of childbearing age to take a daily folic acid supplement or consume foods fortified with folic acid.