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Is sparkling spring water better than still spring water?

Quick answer

Neither is better for hydration. Sparkling and still water hydrate about equally well, so the better one is the one you will drink enough of. Plain sparkling water can cause bloating or worsen reflux in some people and is slightly acidic for teeth, but it is far gentler than sugary soda. Check labels for added sugar or sodium.

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In this article
  1. Is sparkling water better than still water?
  2. What about teeth?
  3. Spring water vs mineral water
  4. What to watch on the label
  5. How much is fine?
  6. Who should choose still water

Is sparkling water better than still water?

No, and it is not worse either. A dietitian quoted by TODAY says the one that hydrates you more is the one you will actually drink enough of. TODAY reports that sparkling and still water are about equally hydrating, since both are mostly water.

Still Sparkling
Hydration Excellent About the same
Easy to drink in volume Yes Carbonation can make you feel full sooner
Bloating or gas Unlikely Possible; may worsen acid reflux
Teeth Neutral Slightly acidic

What about teeth?

Sparkling water is slightly acidic, and heavy long-term use may contribute to enamel erosion, TODAY notes. It is still much gentler on teeth than sugary sodas or juices. If you sip all day, consider switching to still water between meals.

Spring water vs mineral water

Spring water comes from an underground source and is sold both still and sparkling. Mineral water provides calcium, sodium, potassium and magnesium, which TODAY says can help replace electrolytes lost through sweat. People with kidney problems should watch their sodium, potassium and phosphorus intake.

What to watch on the label

  • Added sugar or sweeteners: sugar can spike blood glucose and contribute to tooth decay, and some artificial sweeteners upset the stomach.
  • Sodium: check if you manage blood pressure.
  • Flavorings: TODAY ranks plain, unsweetened sparkling water first, followed by naturally flavored seltzer.

How much is fine?

Drinking sparkling water daily is generally safe in moderation, about one or two cans a day according to TODAY, though this varies by person. A mix of still and sparkling is a good approach.

Who should choose still water

If fizz gives you bloating, burping, gas or heartburn, choose still. Talk to your doctor if you have concerns.

People also ask

Is sparkling water as hydrating as still water?

Yes, according to TODAY. Both are mostly water.

Does sparkling water damage teeth?

It is slightly acidic, and heavy long-term use may contribute to enamel erosion, but it is much gentler than sugary soda or juice.

Can sparkling water cause bloating?

Yes, the gas can cause temporary bloating, burping or flatulence and may worsen acid reflux in some people.

General information only, not medical advice. If you have a health condition or are pregnant, ask your doctor before changing what you drink.

Sources

  1. TODAY: Is sparkling or still water better for you? Dietitians on hydration and differences, read 5 Nov 2026
Written by Drinks Type Editorial Team · Published Apr 16, 2024 · Updated Nov 5, 2026
About · How we verify this · Editorial policy · Corrections

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