Soy Formula Feedings in Healthy, Term Infants

Inclusion Criteria: * Healthy infants believed by their parents and/or physicians to be experiencing symptoms of cow's milk formula intolerance and who had not previously consumed a soy-based formula (Intervention subjects). * Health infants reported to be tolerating a milk-based formula (Cohorts). * Infants considered full-term, 2 to 9 weeks of age with a birth-weight above the 5th percentile (NCHS).