Why do babies spit up?

A baby who's spitting up a lot, yet has no pain associated with spitting up and otherwise seems content is frequently called a happy spitter.

Enfamil A+ for feeding babies who frequently Spit Up contains rice starch that becomes thicker in a baby's stomach. Enfamil A+ for feeding babies who frequently Spit Up is clinically proven to reduce this issue. it also contains a blend of two dietary fibres, GOS and polydextrose, shown to soften stools*

^{*Studied in Enfamil A+ infant formula compared to same formula without fibre blend.}

Frequent Spit up? You’re not alone.

Why do babies spit up?