I’ve heard the whispers—people claiming seltzer will dissolve your teeth or turn your stomach into a science experiment gone wrong. Look, carbonated water is slightly more acidic than flat water, sure. But we’re talking about a pH of around 4.5, which is still less acidic than orange juice or even your own saliva after a sugary snack. Unless you’re swishing it around your mouth for ten minutes like mouthwash, your enamel is fine. (And please, for the love of hydration, don’t do that with any drink.)
Here’s the ironic twist: some studies even suggest that seltzer might boost hydration because the bubbles can make you drink more. Think about it—who gulps down a liter of still water in ten minutes? Nobody. But crack open a can of lime flavored fizz, and you’ll finish it before you realize you’re breathing. That’s a win, my friend.
The flavor trap (and why you should watch your step).
Now, here’s where I drop the “but” you probably saw coming. Unflavored seltzer is the gold standard—zero calories, zero sugar, pure hydration. But those “naturally flavored” varieties? They’re usually fine, unless they sneak in added sugars, artificial sweeteners, or citric acid like it’s going out of style. I’m looking at you, fancy brands with “essence of watermelon.” Your hydration goal doesn’t need a packet of stevia or a pinch of sodium benzoate. Stick to the plain stuff or add a real lemon slice—your kidneys will thank you.
Is Seltzer Water Hydrating at Matt Holcomb blog
And can we talk about the elephant in the room? Club soda vs. sparkling mineral water vs. seltzer. It’s confusing, I know. But for hydration purposes, they’re all basically the same: water with bubbles. Club soda has added minerals (sodium, potassium) for taste, but unless you’re chugging six liters of it, that sodium is irrelevant. Sparkling mineral water comes from a natural spring and has a distinct flavor—it’s fine, but it’s still just water. Seltzer is the cleanest option because it’s literally just carbonated tap water. Pick your bubbly poison; your body won’t judge.
