Seltzer, Hydration, and Health: What You Really Need to Know Before Cracking Open That Can
You’re sitting at your desk, staring down another glass of water thinking, “Really? More water? Again?” I get it. It’s not exactly thrilling. Then later, while wandering the grocery store, your eyes catch those bold, colorful seltzer packs. All those fun, fruity flavors? Yes, please. Suddenly drinking water doesn’t feel like a chore. Plus, no calories, no sugar, no carbs? Sounds like a dream. But wait. Didn’t you read something once about seltzer being unhealthy? And now you’re not sure what’s real and what’s not. Totally fair. Let’s take a breath and break it down, so you’re not stuck in hydration confusion.
First, let’s clarify what we’re even talking about. What is seltzer, really? And more importantly, is flavored seltzer healthy? Seltzer is simply carbonated water—water with bubbles from added carbon dioxide. It can be plain or flavored, and flavors can come from natural or artificial sources. Always check the ingredient list to know exactly what you’re getting. Most sparkling waters don’t contain sugar, sodium, or minerals, which makes them different from club soda or tonic. But flavored options can sneak in citric acid, folic acid, or preservatives. If your goal is clean hydration, knowing those extras matters.
So here’s the million-dollar question—is carbonated water as hydrating as water? You’ve probably seen those studies that make you second-guess your favorite fizzy drink, even if it’s not soda. The good news? Research says carbonated water hydration levels are comparable to regular water. The bubbles might make it feel like you’re drinking more than you are, but your body is still getting hydrated. That said, about fifteen years ago, I was taught something that stuck with me—processing carbon dioxide might require calcium. If you’re not getting enough calcium through food, your body could pull it from your bones or teeth. That could mean lower bone density, tooth decay, or other issues you don’t want showing up later.
Plus, we’ve seen links between carbonated drinks and things like diabetes, hypertension, kidney stones, and other chronic conditions. One 2009 study showed people drinking two cans of fizzy fruit drinks were five times more likely to develop fatty liver. Yikes. But here’s the thing—it might not be the carbonation itself that’s the issue. Phosphoric acid, which is often found in sodas, seems to be a bigger culprit. It’s been associated with kidney changes and stones, so that could be the real trigger. More research will definitely help here, but in the meantime, staying informed puts you in control.
Now, if all this has you side-eyeing your favorite flavored bubbles, but you still can’t face another day of boring water, don’t worry. You can bring your own flavor game. Add fruits, herbs, even veggies to a pitcher of water or seltzer. Get creative—think cucumber-mint, orange-raspberry, or lemon-lavender. The longer it sits, the more flavorful it gets. Think of it like making your own spa water at home.
When it comes down to it, whether you’re reaching for a can of Polar or another brand, and wondering, is Polar seltzer water healthy, your best bet is to read the label. Your body will tell you what’s working. If you’re feeling bloated, gassy, or weirdly hungrier after drinking seltzer, it might not be the right choice for you. Try flavoring plain water instead. But if it helps you stay hydrated and on track with your goals, then grab that can and keep going.
Next time those sparkling water shelves call your name, you’ll know exactly what to look for. Hydration doesn’t have to be boring, and you don’t have to feel stuck. Let your taste buds have some fun while still doing something great for your body.