Tolerance of a milk-based formula by infants.

A standard, low-iron, milk-based formula was fed to 781 healthy infants younger than 12 months of age. The infants showed normal increases in weight and length during the study. The formula was well tolerated by most of the infants. The most frequently reported symptoms of intolerance before and during the study were loose stools (in 78%) and spitting up (in 79%). A significant decrease from before to after the study was reported in the symptoms of colic, constipation, diarrhea, loose stools, skin rashes, and spitting up. It is concluded that a standard milk-based formula is well tolerated by most healthy infants.