That carbonation is the key. It’s carbon dioxide gas trapped in liquid. When you drink it, that gas expands in your warm stomach. Imagine a tiny balloon party in your gut. Not all balloons pop nicely.
Your stomach stretches to hold the gas. This triggers pain nerves. Blame evolution. Your body thinks you’re being poisoned by a predator. It screams “Get this out!”. But you just wanted a cola.
The Acid Tag-Team
Here’s the real kicker. Soda isn’t just gas. It’s acidic. Phosphoric acid. Citric acid. Your stomach already has strong acid for digestion. Now you dump an extra acid bomb on top. It’s like adding hot sauce to a curry that’s already on fire.
This acid irritates your stomach lining. Especially if it’s sensitive. The bubbles make it worse. They force the acid against the stomach wall. A double whammy of pain. Fizz plus burn equals ouch.
