In transitioning from one the infant formula to milk, there should always be a middle step to prepare the baby's body for whole milk. Enfamil Next Step does that well. When your child nears a year old it is very tempting to charge right into whole milk, but depending on the child it is not always safe. Enfamil Next Step allows the child to gradually get use to the nutrients and different ingredients by slowly introducing the body to new additions. There is fortunately, in my case, no gas or spit-up (not including when they move immediately after eating) that interfere with their digestive system....