The Gastrocolic Reflex: Your Body’s Natural Response
The most common—and completely normal—reason you feel the need to poop after eating is something called the gastrocolic reflex.
What Is It?
The gastrocolic reflex is your digestive system’s way of making room for incoming food. When you eat, your stomach stretches and sends signals to your colon to move things along—literally. This natural reflex can cause the urge to have a bowel movement shortly after you start or finish a meal.
