If you decide to feed your baby formula, choose a formula that is fortified with iron. The American Academy of Pediatrics recommends that you avoid low-iron formulas, because they will not adequately support your baby’s growth and development.
“Most of the formulas that are on the market are cow’s milk-based,” says Joy L. LeDoux-Johnson, MD, internal medicine physician and pediatrician at Saint Francis Medical Center. “While you should not feed your baby cow’s milk until he is one, these formulas are OK because the milk has been changed to make it safe and more digestible for infants.”
Soy formulas may be the best choice for babies who are unable to digest lactose, the main carbohydrate in cow’s milk-based formula. There are also other special formulas, such as hypoallergenic formulas, which help babies who have food allergies. Talk to your pediatrician about whether you need a specialized formula.