Does Seltzer Count As Water

Let’s be honest: drinking plain water is about as exciting as watching paint dry on a sponge. You know you need it, but your taste buds would rather file a formal complaint. That’s where seltzer comes in, all bubbly and smug, pretending to be a fancy soda without the sugar. The big question, the one that haunts kitchen tables and diet debates: does seltzer actually count as water, or are we all just lying to ourselves?

The Great Hydration Conspiracy

Here’s the short, science-backed truth: yes, seltzer counts as water. Your body doesn’t care if H2O arrives solo or dressed up in carbon dioxide. The kidneys, those overworked bouncers of your bloodstream, treat carbonated water the same as still water—they just process the bubbles and move on.

But wait—doesn’t the fizz make it less hydrating? Nope. A 2024 study in the American Journal of Clinical Nutrition found that seltzer is just as hydrating as regular water over a 24-hour period. The only difference? You might burp a little more, which is technically a win if you’re trying to impress nobody.

The Acid Myth You’ve Been Fed

I can already hear the skeptics: “But seltzer has carbonic acid! It’ll dissolve your teeth like a gummy bear in a hot tub!” Calm down, internet. The pH of seltzer is around 4.5—about the same as black coffee or orange juice. Your saliva is a master negotiator and neutralizes that acid within minutes.

Unless you’re swishing seltzer in your mouth for three hours straight like a wine critic, your enamel is fine. If you want a real dental horror story, talk to the guy who drinks battery acid—oh wait, you can’t, because he’s a fictional example I just made up.

The Sneaky Sodium Trap

Now, here’s where things get tricky. Not all seltzers are created equal. Some brands—looking at you, generic store-brand club soda—add sodium and potassium salts to mimic minerality. A can of plain club soda can have up to 75 milligrams of sodium, which is tiny compared to a bag of chips, but it adds up if you chug six cans.

Seltzer Water vs Sparkling Water: What's the Difference? – Soda Sense

Le Croix? LaCroix? Same deal—those flavors are “natural” (read: ghost oils that taste vaguely like a memory of a mango). Sodium levels are usually zero, so you’re safe. Just avoid the “tonic water” section unless you want a sugar spike that would make a hummingbird dizzy.

The Bubbly Bloating Blues

Let’s address the elephant in the room—or rather, the bloat in your belly. Drinking carbonation can cause gas, which is your body’s way of saying, “Hey, I’m not mad, just disappointed.” If you chug a liter of seltzer before a Zoom meeting, you will look like a beached whale in a turtleneck.

But here’s the good news: that bloat is temporary. Your body absorbs the CO₂ or burps it out, and you’re back to your usual silhouette within an hour. For most people, the hydration benefits far outweigh a little puffy gut—unless you’re a competitive speed-eater, in which case, you have bigger problems.

Seltzer Water Unhealthy

The Surprising Longevity Hack

Want a weird fact to drop at a party? A 2023 Japanese study on mice found that carbonated water actually improved kidney function by increasing urination frequency. The bubbles seem to stimulate the stomach lining, signaling the kidneys to filter faster. Humans aren’t mice (despite what your ex says), but the mechanism appears similar.

Also, seltzer is a hero for weight loss. A 2017 study showed that carbonated water makes you feel fuller longer than still water, which might stop you from raiding the fridge for that third slice of cold pizza. It’s not magic—just science with a fizz.

The Final Verdict

So, does seltzer count as water? Yes, absolutely, 100%—as long as you’re drinking the plain, unsweetened, flavorless stuff. If you’re sipping on “seltzer” that’s actually a sugary, artificially flavored soda in disguise (looking at you, Spindrift with real fruit juice), that’s a different conversation. That’s dessert pretending to be virtue.

Drink your fizzy hydration with pride. Your body is getting what it needs, and your taste buds aren’t staging a rebellion. Just don’t blame the seltzer if you spend the next hour sounding like a bubble-wrapped microwave. That’s the price of delicious defiance.