The Effect of Feeding Infant Formula With Bimuno Galactooligosaccharide (GOS)

Inclusion Criteria: * o 15 ± 3 days of age at randomization, inclusive (day of birth is considered day 0) * Singleton birth * Gestational age of 37-42 weeks (36 weeks and six days is considered 36 weeks gestational age) * Birth weight of 2500g to 4000g * Signed informed consent obtained for infant's participation in the survey * Parent or guardian of infant agrees not to enroll infant in another interventional clinical research survey while participating in this survey * APGAR score after 5 minutes of life \> 7 * Consuming only one source of nutrition * Formula-fed infant: Infant consuming infant formula as the sole source of nutrition for 7 consecutive days prior to randomization * Breastfed infant: Infant consuming mother's breast milk as the sole source of nutrition for 7 consecutive days prior to registration Exclusion Criteria: * Infant with inborn malformation and with hereditary and/or chronic and/or inborn diseases requiring hospital care superior to 7 days * Diseases jeopardizing intrauterine growth * Weight at Visit 1 is \<95% of birth weight \[(weight at Visit 1÷birth weight) x 100 \<95%\] * Infant born from mother suffering from metabolic and/or chronic diseases * Infant with an acute infection or gastroenteritis at time of randomization or registration * Infant consuming supplemental foods * Evidence of feeding difficulties or formula intolerance, such as vomiting or poor intake at time of randomization or registration * Infant is immunocompromised (according to a doctor's diagnosis of immunodeficiency such as Combined Immunodeficiencies, DiGeorge Syndrome, Wiskott-Aldrich Syndrome, Severe Congenital Neutropenia and Secondary Immunodeficiencies linked to HIV infection, Down Syndrome or others) and children with known head/brain disease/injury such as Microcephaly, Macrocephaly or others