Yes, I said ‘poop’.
So all in all, scientists really don’t know why it makes you go number 2…
At first doctors thought it was the caffeine, but let’s be honest, even the decaf makes you go….So it might have something to do with other compounds in coffee.
So here are the two main theories on why coffee can make you clench.
1. It might cause contractions in your colon. A study in 1998 found coffee might stimulate “colonic motor activity” within minutes of drinking it.
People volunteered to have a sensor INSERTED into their colon to monitor contractions. Coffee was 60% more effective at making them happen than when they just drank water. And a separate study found it takes as little as four minutes.
2. It might make us produce more stomach acid. A study in 1986 found it could be true, and a small study in 2009 seemed to back that up. Stomach acid helps us digest food, and they think that having more of it might make your colon more active.
The more you know. Article from CNN.