First, slow down. Chugging a can of seltzer is like doing a cannonball into a pool—you’re going to make waves. Sip it slowly, and let your stomach adjust to the pressure.
Second, check the label for added acids. Choose plain, unflavored sparkling water, or those with only natural flavors (which are often less acidic). Mineral water, like Perrier or San Pellegrino, has natural minerals that can buffer acidity.
Third, pair it with food. Drinking sparkling water on an empty stomach is asking for trouble. A small snack, like a handful of almonds or a banana, can help absorb some of that gas and keep the LES gatekeeper calm.
Does Sparkling Water Cause Heartburn? - Beverage Buff - YouTube
Finally, try the sicilian trick. In Italy, locals often add a squeeze of fresh lemon to flat water, but they avoid the artificial citric acid. Even better, a slice of lemon peel has oils that soothe the stomach, not inflame it.