Does Coffee Make You Poop?

Yes, coffee stimulates bowel movements for many individuals. It triggers the release of gastrin and cholecystokinin, hormones that speed up colonic motor activity and muscle contractions in the gastrointestinal tract. This laxative effect occurs with both caffeinated and decaffeinated coffee, though caffeinated varieties tend to be stronger. It is a natural response and is not harmful. Source: SingHealth / Mount Elizabeth Hospital