The American Academy of Pediatrics is committed to breastfeeding as the ide
al source of nutrition for infants. For those infants who are formula-fed,
either as a supplement to breastfeeding or exclusively during their infancy
, it is common practice for pediatricians to change the formula when sympto
ms of intolerance occur. Decisions about when the formula should be changed
and which formula should be used vary significantly, however, among pediat
ric practitioners. This statement clarifies some of these issues as they re
late to protein hypersensitivity (protein allergy), one of the causes of ad
verse reactions to feeding during infancy.