The AAP recommends that infants be fed formula or breast milk for at least 12 months.
Cow's milk alone is not an appropriate diet for infants because the baby's kidneys may not work as efficiently as an adult's. Cow's milk also has too much protein (and in particular, too much casein, a type of protein). The minerals are not easily absorbed, and there is an increased risk for sensitization to milk proteins. Low-fat and skim milk are also inappropriate for use in the first year of life. They do not provide enough calories for growth or enough of some nutrients needed for normal development.
Formulas based on cow's milk are appropriate for full-term and preterm infants having no special nutritional requirements.
SPECIAL FORMULAS
Special formulas should be used under a physician's supervision.
MIXING FORMULA
Improper mixing of formula is common and may harm the infant. Follow the instructions on the formula container carefully.