The gastrointestinal tract, sometimes referred to as the GI tract or digestive tract, as well as the liver, pancreas, and gallbladder comprise the digestive system. The GI tract is a lengthy, winding tube that connects the mouth to the anus and is made up of several hollow organs. The mouth, esophagus, stomach, small, large, and anus are the hollow organs that comprise the GI tract. The digestive system’s solid organs are the pancreas, liver, and gallbladder.

Because your body needs nutrients from food and drink to function correctly and remain healthy, digestion is crucial. Nutrients include water, proteins, lipids, carbs, minerals, and vitamins NIH external link. Nutrients are broken down by your digestive system into tiny pieces that your body can absorb and use for growth, repair, and energy.

Your Digestive System & How it Works – NIDDK

https://www.niddk.nih.gov/health-information/digestive-diseases/digestive-system-how-it-works

Overview of the digestive system—how food moves through each part of the GI tract to help break down food for energy, growth, and cell repair.