What dietary supplement do pregnant women particularly need to prevent birth defects?

Folic acid is crucial for pregnant women because it plays a significant role in the development of the neural tube, which forms the baby's brain and spinal cord. Adequate intake of folic acid before conception and during early pregnancy can help prevent serious birth defects of the brain and spine, known as neural tube defects. It is recommended that women who are planning to become pregnant consume folic acid supplements along with a balanced diet rich in folate to ensure they meet the necessary levels for proper fetal development.

Other nutrients, such as calcium, vitamin D, and omega-3 fatty acids, are also important during pregnancy for various health reasons. Calcium is essential for the development of the baby's bones and teeth, vitamin D aids in calcium absorption and supports the immune system, and omega-3 fatty acids are important for brain development. However, folic acid stands out as especially critical because of its specific role in preventing neural tube defects during the early stages of pregnancy.