Complex sentence: About 90% of babies aged six to twelve months eat some type of grain, although only half eat infant cereal, and others eat rice, bread, crackers, pasta, or cereal designed for older children.
Split into simpler sentences: About 90% of babies aged six to twelve months eat some type of grain, although only half eat infant cereal. The others eat rice, bread, crackers, pasta, or cereal designed for older children.