The aim of this trial is to test the efficacy of an infant formula containing synbiotics on the prevention of gastro-intestinal infections.

Inclusion Criteria:

• Healthy newborn infant
• Full term infant (≥ 37 weeks gestation; ≤ 42 weeks gestation)
• Age of infant is ≤ 13 days at the time of enrollment
• Birth weight ≥ 2500g and ≤ 4500g
• For the FF groups: The infant's mother has elected not to breastfeed
• For the BF group: The infant's mother has elected to fully breastfeed her baby, from enrollment to at least 3 months of age
• Having obtained his/her legal representative's informed consent

Exclusion Criteria:

• Congenital illness or malformation that may affect normal growth (especially immunodeficiencies)
• Significant pre-natal and/or post-natal diseases
• Perinatal antibiotic or infants on antibiotics at the time of inclusion
• Infants whose mother has had an acute infection during the last month of pregnancy
• Re-hospitalisation for more than 2 days in the first 14 days of life (exceptionally, infants re-hospitalized because of jaundice may be enrolled in the study)
• Receiving infant formula containing probiotics and/or prebiotics at the time of enrollment
• Newborn whose parents / caregivers cannot be expected to comply with treatment
• Newborn currently participating in another interventional clinical trial