Effect of Lactobacillus Rhamnosus GG (LGG) on Infant Colic

This study will compare 2 currently marketed formulas in healthy full term babies:
Nutramigen A+ (a hypoallergenic formula) and Nutramigen-Enflora (hypoallergenic formula with
Lactobacillus GG (LGG)) during 3 months of formula feeding. The investigators' aims are to
compare 3 outcomes in these babies: (1) normal baby crying time; (2) the composition of
intestinal microbiota (bacteria in the stool); and (3) a lab test which measures the number
of white blood cells in the large intestine (fecal calprotectin). The investigators predict
that LGG supplementation (Nutramigen-Enflora) will facilitate its establishment as an
important component of the neonatal intestinal microbial community and reduce fecal
calprotectin.