Questions: At 4-6 months of age, infants may need an additional source of iron other than breastfeeding.

The answer is the second one: At 4-6 months of age, infants may need an additional source of iron other than breastfeeding.

Explanation for each option:

1. Infants will not need any additional iron until they are more than 12 months old.

   • This is incorrect. Infants typically need additional iron starting around 4-6 months of age because their iron stores, which they accumulate during the last trimester of pregnancy, begin to deplete.

2. At 4-6 months of age, infants may need an additional source of iron other than breastfeeding.

   • This is correct. Around 4-6 months of age, infants' iron stores start to deplete, and breast milk alone may not provide sufficient iron. Therefore, additional sources of iron, such as iron-fortified cereals or supplements, may be necessary.

3. Breast milk is very high in iron.

   • This is incorrect. While breast milk contains iron, it is not in high amounts. However, the iron in breast milk is highly bioavailable, meaning it is well absorbed by the infant.

4. Infants need iron supplementation to begin at birth.

   • This is incorrect. Full-term infants typically have sufficient iron stores to last until about 4-6 months of age. Premature infants or those with low birth weight may need earlier supplementation, but this is not the case for all infants.

Summary: Infants generally need an additional source of iron starting at 4-6 months of age, as their initial iron stores begin to deplete and breast milk alone may not provide enough iron.