This comes from a new review of several studies. It suggests that fats do not give children the thinking and language advantages that have been tied to breast-feeding.
The results don't necessarily mean that fatty acids in formula have no benefit.
Researchers say they could benefit in other ways such as boosting eyesight or immune function.
However, researchers explain in the journal "Pediatrics" that infants raised on breast milk tend to score higher on tests of mental development than those who are fed formula.