What dietary supplement is crucial for preventing anemia during pregnancy?

Iron supplements are crucial for preventing anemia during pregnancy due to the increased demands for iron as the body produces more blood to support the developing fetus. During pregnancy, the volume of blood in a woman’s body increases significantly, leading to a higher requirement for iron to ensure that there is enough hemoglobin to carry oxygen to both the mother and the baby.

Anemia in pregnancy primarily arises from iron deficiency, which can lead to fatigue, weakness, and complications for both the mother and the baby. Iron supplements help to replenish iron stores and ensure that the mother's body can meet the increased physiological demands.

While calcium, folic acid, and vitamin D are also important during pregnancy for various other health aspects—such as bone health and reducing the risk of neural tube defects—none of these supplements directly address the specific issue of anemia in the same way that iron supplements do. Therefore, iron supplementation is considered essential to maintain adequate hemoglobin levels and prevent anemia during this critical period.