Reduce Frequent Spit-Up, While Encouraging Milestones It s not uncommon for babies to spit-up frequently as their digestive systems develop. Sometimes a change in formula can make all the difference. Enfamil A.R.® is clinically proven* to reduce frequent spit-up. Enfamil A.R. is designed to help reduce spit-up due to its thicker consistency, yet easily flow through nipple. That way, babies can get, and keep, the complete nutrition they need to grow and develop, helping them reach key milestones. Is the #1 brand of formula for spit-up* Provides more balanced nutrition than adding rice cereal to formula Includes a blend of prebiotics for digest