• The primary objective of the study was to compare stool composition (stool soap and non-soap fatty acids, total fatty acids, minerals, and other stool constituents) of infants randomized to receive either standard formula, or 1 of 2 innovative formulas containing a new fat blend or the new fat blend plus fiber.
• The secondary objectives were to evaluate among the feeding groups, stool characteristics (stool consistency and frequency), GI tolerance assessed by the Infant Gastrointestinal Symptom Questionnaire (IGSQ), and urinary markers (F2-isoprostanes and 8-hydroxy-2'-deoxyguanosine [8-OHdG], and urine osmolality and specific gravity).
• The primary safety objective was to describe the frequency of adverse events (AEs) among the formula-fed (FF) groups.
• The secondary safety objective was to describe anthropometric measures (weight, length, and head circumference) among the feeding groups.

Inclusion Criteria:

• Healthy, term (no less than 37 weeks and no greater than 42 weeks) singleton infants; between 25 days to 45 days post natal age (date of birth = Day 0) and weight for age ≥3rd and ≤97th percentiles according to Taiwan growth charts at the time of study entry.
• Human milk fed infants were exclusively consuming and tolerating HM and the mother must have made the decision to continue to exclusively breastfeed.
• Formula-fed infants were exclusively consuming and tolerating a cow's milk infant formula and parents/LAR must have previously made the decision to continue to exclusively formula feed.

Exclusion Criteria:

• Infants receiving any amount of supplemental HM with infant formula feeding or vice versa
• Family history of siblings with documented cow's milk protein intolerance/allergy
• Major congenital malformations, suspected or documented systemic or congenital infections, evidence systemic diseases