Feeding Intervention for Infants With Crying

Inclusion Criteria: * full term infants greater than or equal to 37 wks gestation * 3 weeks to less than or equal to 4 months of age upon enrollment * experiencing ongoing crying and fussy episodes of a minimum of 3 hours of crying /day for 3 days in a week for at least one week prior to enrollment * otherwise healthy as reported by parent/caregiver * is under the care of a pediatrician or other qualified healthcare professional and has had at least one postnatal visit * taking no more than one feeding of breast milk per day * having not initiated weaning foods or beverages other than infant formula or breast milk * study explained and written information provided with Parent/caregiver demonstrating understanding of the given information * informed consent signed(parent/legal representative) Exclusion Criteria: * Chromosomal or major congenital anomalies * known cow's milk allergy * receiving any type of therapeutic formula (including extensively hydrolyzed formula or free amino acid formula) * receiving an antibiotic or probiotic in the week prior to enrollment * complicated reflux, defined by reflux combined with inadequate growth and/or respiratory complications * infant's family, who in the investigator's assessment, cannot be expected to comply with the protocol * infant currently participating in another conflicting clinical study