Food and drink must be changed into smaller molecules of nutrients to be absorbed into the blood and carried to cells throughout the body. Digestion is the process by which food and drink are broken down into smaller parts so that the body can use them to build and nourish cells and to provide energy.
Digestive System
The Children's Wisconsin Gastroenterology, Liver and Nutrition Program give an overview of the digestive system and how food moves through the body.
