Wondering whether sparkling water hydrates you as well as still water? Experts confirm that both types of water are equally effective at keeping your body hydrated. The main factor is simply drinking enough throughout the day, regardless of whether your water has bubbles or not.
Registered dietitian Callie Krajcir from Pennsylvania explains, “Studies show no meaningful difference between sparkling and still water when it comes to fluid retention or how much urine your body produces.” She adds, “The best choice is the one you enjoy most, because you’ll drink more of it.”
How Much Water Should You Drink?
To stay properly hydrated, adults generally need between 11.5 to 15.5 cups daily, depending on factors like activity level, age, and health status. Sparkling water can be a helpful option for those who struggle to drink plain water regularly. Trista Best, a registered dietitian in Georgia, points out, “For some people, bubbly water is a great way to increase hydration because it feels more enjoyable than flat water.”
When Sparkling Water Is a Smart Swap
If you’re trying to cut back on sugary sodas or energy drinks, sparkling water can be a fantastic alternative. It provides the fizzy sensation without the added sugars, caffeine, and empty calories linked to health issues like poor blood sugar control and metabolic problems. But beware—some carbonated waters contain added flavors, sweeteners, or sugars, so always check the label and choose options free of these additives.
Considerations for Sensitive Stomachs and Bladder Health
While sparkling water is fine for most people, those with certain health conditions might want to be cautious. Carbonation can aggravate bladder issues such as interstitial cystitis or overactive bladder. People with digestive sensitivities, like acid reflux or irritable bowel syndrome, may also experience discomfort due to the gas from fizzy drinks. If you suspect carbonation is triggering symptoms, try avoiding sparkling water for a few weeks and see if you notice a difference.
Environmental and Chemical Concerns
Another factor to consider is the presence of per- and polyfluoroalkyl substances (PFAS)—man-made chemicals sometimes found in bottled carbonated waters. These substances have been associated with health risks including liver and kidney problems, as well as cancer. To minimize exposure, opt for brands that clearly state their products are PFAS-free.
Bottom Line: Choose What Works for You
Both sparkling and still water hydrate you well, so go with whichever you prefer and will drink regularly. If you have sensitive digestion, bladder concerns, or want to avoid synthetic chemicals, still water or carefully selected sparkling brands might be your best bet. Ultimately, staying well hydrated is what matters most—bubbles or no bubbles.
