Can routine screening and iron supplementation for iron deficiency anemia in nonsymptomatic pregnant women improve maternal and infant health outcomes?

Pregnant women have an increased need for iron that might not be met with diet alone. Due to physiologic anemia and population differences, no set criteria for defining iron deficiency anemia (IDA) are available globally. Serum ferritin and transferrin levels are often used to guide therapy by clinicians. Studies have reported an association between poor iron status and negative health outcomes such as low birth weight, premature birth, and perinatal death for women and their infants, although the evidence is weak.