A nurse in a clinic is teaching the mother of a 4-month-old infant who has been breastfed. The mother plans to switch her infant to an iron- fortified formula. Which of the following should be included in the teaching?

A. Iron facilitates development of vision in infants: While iron is essential for overall neurological development, including brain function, it is not directly linked to the development of vision. Vision development relies more on visual stimuli and neurological maturation. B. Iron is poorly absorbed in infants: Infants, especially those fed breast milk, generally have efficient iron absorption, often better than adults. Iron absorption can vary but is not inherently poor in infants; thus, this statement is misleading. C. Iron facilitates growth of bones in infants: Bone growth primarily depends on calcium, vitamin D, and phosphorus rather than iron. Iron’s primary role is in oxygen transport and preventing anemia, not bone growth. D. Iron stores in infants begin to deplete: Infants are born with iron stores that typically last about 4 to 6 months, after which these stores start to decline. This depletion is why introducing iron-fortified formula or complementary foods rich in iron is important at this age to prevent iron deficiency anemia.