Definition

How Food Moves Through Your Body

Choose a preferred language

When you eat, food enters your digestive tract. This is a series of organs that form a pathway from your mouth to your anus. As food moves down this pathway, it is processed and changed to waste. The nutrients are absorbed in the body. After food is changed to waste, it is pushed out of your body in a bowel movement.

Outline of man showing gastrointestinal tract.

  • The stomach breaks down food into a liquid mixture.

  • The small intestine absorbs nutrients from the liquid mixture. What remains is liquid waste.

  • The large intestine (colon) absorbs water from the liquid waste, converting it into solid waste (stool).

  • Nerves along your digestive tract tell your muscles how fast to contract.

  • Muscles in the intestines contract to move food and waste through the digestive tract.

  • The rectum stores stool until a bowel movement happens.

  • The anus is the opening where stool leaves the body.

Online Medical Reviewer: Diane Horowitz MD

Online Medical Reviewer: Louise Cunningham RN BSN

Online Medical Reviewer: Paula Goode RN BSN MSN

Date Last Reviewed: 04/01/2025

© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
doctor icon

Find the right provider to meet your needs

From primary care to specialty services and more.

Find a Doctor
appointment clock icon

Call for an Appointment

Offering personalized care at more than 20 clinics across three cities and two states.

Call Now
Related Articles
Read article
Digestive Health
The Digestive Process: How Does the Esophagus Work?

Your esophagus has 1 main purpose: to move food from your throat to your stomach. Here's how it works.

Read article
Digestive Health
How the Liver Works

Detailed information on how the liver works, including a full-color, labeled illustration of the digestive system

Read article
Digestive Health
How the Liver Works

How much do you know about the liver? Read on to learn about this vital organ and its many important jobs.

Read article
Digestive Health
What Is Barrett Esophagus?

You have Barrett esophagus. This means that there have been changes to the lining of the esophagus near the stomach. The changes may have been caused by the acid reflux that happens with GERD. The changed lining isn't cancer. But it may raise your risk of having cancer later on.