Most sodas have a pH around 2.5 to 3.5—that’s almost as acidic as battery acid. Not to scare you, but your stomach lining is tough; your esophagus is not. That acidic drink literally irritates the sensitive tissue on its way down.
And don’t think diet or clear sodas are off the hook. They still have phosphoric and citric acids that can stir up trouble. My neighbor Mark swears his lemon-lime soda is “gentle,” yet he’s reaching for antacids before dessert.
Even caffeine-free versions can cause issues because the carbonation itself is a culprit. It’s like the angry bubbles are little messengers of regret.
Heartburn And Diet Mountain Dew: What's The Connection? | ShunKeto
The Sugar & Caffeine Twist
Sugar (or artificial sweeteners) can relax that muscle door even more. Caffeine does the same thing, so a sugary, caffeinated soda is a double whammy for your heartburn. Imagine inviting a clown to a library—nothing good happens.
For some people, drinking soda with a meal makes it worse. The extra liquid volume plus the carbonation creates a perfect storm for acid reflux. I’ve learned this the hard way after pizza and a cola—I called it my “lava hour.”
So what do you do if you love soda but hate the burn? You don’t have to give it up forever, but you can be smarter about it.
