What is the Digestive System?

The digestive system is made up of all the organs that contribute to the digestion of food, which gives your body the energy and nutrition it needs to survive. Most of the food you eat is too big to be used by your cells and needs to be broken down into smaller parts. Digestion is the process that breaks food down into its nutrient parts: simple sugars, amino acids, and fatty acids. These vital nutrient parts are then taken up by the cell layer that lines the inner surface of the digestive tract, enter the blood stream, and used as fuel and building blocks for your cells.