We love the fizz, but your digestive system isn’t thrilled. Carbon dioxide gas builds up in your intestines, creating pressure that can speed up transit time. It’s like putting a thumb over the end of a garden hose—things get explosive when the pressure releases.
If you drink soda fast (who sips slowly at a summer barbecue?), you’re swallowing even more air. That air has to go somewhere, and it usually takes your stool along for the wild ride. Congratulations: you just turned your colon into a soda geyser, minus the Mentos.
The Lactose + Soda Nightmare
Here’s a pro tip from science: don’t wash down a cheese pizza with a root beer. Many people have undiagnosed lactose intolerance, and soda’s acidity can make it harder to digest dairy. The combination is a perfect storm of gas, cramping, and regrets that no amount of Pepto-Bismol can fix.
I once saw a guy at a county fair order a nachos-and-soda combo. Forty-five minutes later, he was doing a waddle-run toward a porta-potty, clutching his stomach like he was holding onto a winning lottery ticket. I didn’t laugh—okay, I laughed a little.
Can Soda Give You Diarrhea? - Beverage Buff - YouTube
