Which supplement is recommended for a breastfeeding infant?

• A. Fat-soluble vitamins
• B. Iron
• C. Multivitamins with iron
• D. Vitamin D

Answer: (D)

Vitamin D is routinely given to breastfeeding infants because breast milk provides only small amounts, and many babies have limited sun exposure. Adequate vitamin D is essential for calcium absorption and bone mineralization; without it, there’s a risk of rickets and hypocalcemia. The standard recommendation is 400 international units daily starting in the first days of life and continuing through infancy, even if the mother is taking vitamin D or there’s some sun exposure. Iron-containing supplements or multivitamins with iron aren’t routinely given to healthy term breastfed infants unless there are specific signs of iron deficiency, so vitamin D is the standard, universal supplement for this group.