Past generations relied heavily on rice, of infant cereals, as a transition solid for babies. It makes sense since it’s very soft, and can easily be mixed with water, breastmilk or baby formula. However, pediatricians in recent years have come to the conclusion that it’s best to start a baby on whole fruits, vegetables, and meats. As long as they’re finely pureed, without additives or preservatives, these foods offer far more nutritional value than infant cereals.