Studies are actually mixed, because science hates giving straight answers. Some research shows that carbonated beverages—including soda water—can relax the lower esophageal sphincter, that muscular gatekeeper between your stomach and esophagus.
Fizzy Water Heartburn at Paul Nichols blog
When that gate gets lazy, acid slips through. It’s like having a bouncer who falls asleep on the job. Thanks for nothing, buddy.
But here’s the twist: plain soda water is usually less irritating than sodas loaded with sugar, caffeine, or citrus. Those extras are the real villains in many cases.
The Exception (Because Life Loves Exceptions)
If you already have GERD (gastroesophageal reflux disease), soda water might be your personal trigger. Your esophagus is already on high alert, and those bubbles could be the final straw.
But for a healthy person without chronic reflux? You might chug sparkling water until the cows come home with zero issues. It’s like spicy food: some people thrive on it; others run for the toilet.
So the answer isn’t “no”—it’s “it depends.” (Don’t you just love how wishy-washy health advice is?)
