Formula is recommended through the first year of life for those babies who aren’t breastfed, babies who need formula as a supplement, or babies who are weaned before they’re a year old.

Whole cow’s milk should not be given to infants under 12 months of age. The use of cow’s milk before your baby’s first birthday increases the risk of iron deficiency anemia, as well as the development of allergies. Although cow’s milk can be introduced into your baby’s diet after 12 months of age, it should be whole milk until your baby is two years old. Reduced-fat milks, like two percent or skim, don’t have enough fat content to support a toddler’s rapidly growing brain.