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Do Bubbles Count as Drinking Water? Decoding Carbonation and Tap Water Fizz

4 min read

A 2016 study published in the American Journal of Clinical Nutrition concluded that sparkling water hydrates people just as effectively as still water. So, do bubbles count as drinking water? Yes, they do, but understanding what causes those bubbles is key to discerning if your beverage is truly hydrating.

Quick Summary

Both carbonated and regular tap water bubbles count toward your daily fluid intake. Plain sparkling water is equally hydrating, while harmless air bubbles in tap water are also safe to consume.

Key Points

  • Carbonated Water Counts: Plain sparkling water is just as hydrating as regular water, as confirmed by scientific research.

  • Tap Water Bubbles Are Safe: The bubbles in cloudy tap water are harmless dissolved atmospheric gases (like oxygen and nitrogen) escaping from solution.

  • Beware of Additives: Be cautious of flavored or sweetened sparkling waters, as added sugars or sodium can negate hydration benefits and harm health.

  • Potential for Bloating: For individuals with sensitive stomachs or conditions like IBS, the carbonation in sparkling water can cause bloating and digestive discomfort.

  • Listen to Your Body: The best hydrating water is the one you will drink consistently and in sufficient quantity, whether still or sparkling.

  • Dental Risks Are Low: The mild acidity of plain sparkling water poses a minimal risk to dental enamel compared to sugary soft drinks.

In This Article

Bubbles in Water: Not All Fizz Is Created Equal

When we ask, "do bubbles count as drinking water?", the answer depends on the source of the bubbles. The fizz in a carbonated drink is different from the temporary cloudiness of freshly poured tap water. While one is intentionally added carbon dioxide, the other is simply dissolved air reacting to pressure and temperature changes. In both cases, however, the fundamental hydrating agent remains the same: water.

The Science of Sparkling Water

Sparkling water, seltzer, club soda, and mineral water all contain dissolved carbon dioxide gas, which creates the bubbly texture. Despite some myths, this carbonation does not interfere with your body's ability to absorb the water. Numerous studies confirm that plain carbonated water is just as hydrating as its still counterpart because its primary ingredient is still H2O. The best choice for hydration often comes down to personal preference. If the lively, crisp mouthfeel of sparkling water encourages you to drink more throughout the day, it is an excellent way to meet your hydration goals. For those who find the fizz causes bloating or fullness, still water may be a more comfortable option.

Deconstructing Tap Water's Bubbly Appearance

Sometimes, a glass of water straight from the faucet appears milky or opaque due to countless tiny bubbles. This common phenomenon is harmless. The scientific explanation is that tap water, especially cold water, contains dissolved atmospheric gases like oxygen and nitrogen. As the water's temperature rises toward room temperature and the pressure from the pipes decreases, these gases come out of solution and form visible bubbles. If you let the glass sit for a few minutes, you will see the cloudiness clear from the bottom up as the bubbles dissipate. Tap water with these air bubbles is perfectly safe to drink and contributes fully to your hydration.

The Trade-Offs of Carbonation and Additives

While plain sparkling water is a healthy choice, it is important to be aware of the nuances. Some varieties, like club soda, may contain added sodium, while others, like tonic water, can have significant amounts of sugar. Flavored sparkling waters without sweeteners are generally fine, but always check the nutrition label. Furthermore, the mild acidity of carbonic acid in sparkling water (pH 3-4) can cause slight erosion of tooth enamel over extended periods, especially with frequent sipping. This is not a concern for most people, but those with sensitive teeth may prefer still water or drinking sparkling water with meals, when saliva production helps neutralize the acid.

Dispelling the Bone Health Myth

One persistent myth is that carbonated water depletes calcium from bones, leading to osteoporosis. Studies have shown no link between sparkling water consumption and reduced bone density. The confusion often arises from research linking colas, which contain phosphoric acid and high levels of sugar, to decreased bone mineral density. Since sparkling water lacks these ingredients, it does not pose the same risk. In fact, naturally carbonated mineral water can even provide beneficial minerals like calcium and magnesium.

Finding the Best Bubbly Beverage for You

Making the right choice for your hydration depends on your personal health needs and preferences. While plain carbonated water is a great alternative to sugary sodas, it might not be the best option if you experience digestive issues like bloating or acid reflux. For intense workouts, still water is often preferred because it can be consumed faster without causing uncomfortable gas. The key is to listen to your body and choose the beverage that helps you drink more water consistently.

For more on the benefits of drinking sparkling water, explore this comprehensive guide from Abbott Newsroom.

Still Water Plain Sparkling Water Sugary Soda
Hydration Excellent. The gold standard. Excellent. Just as hydrating as still water. Poor. High sugar content and diuretic effects of caffeine can be dehydrating.
Dental Impact Neutral pH, safest for teeth. Mildly acidic; low risk for most, but potential for minor erosion with heavy consumption. Highly acidic and sugary; causes significant tooth decay and enamel erosion.
Bloating No risk. Can cause bloating, burping, or discomfort for sensitive individuals. High risk due to carbonation and artificial ingredients.
Additives None. None in plain varieties; watch out for flavored options with sugar or artificial sweeteners. High in sugar, artificial colors, and phosphoric acid.
Digestion Gentle and effective. May aid digestion for some, but can aggravate conditions like GERD. Can worsen digestive issues and acid reflux.

Conclusion

So, do bubbles count as drinking water? Absolutely. When the bubbles are simply dissolved air in tap water, the liquid is perfectly safe and hydrating. When the bubbles are from carbonation in unsweetened sparkling water, it remains a fantastic, equally hydrating alternative to still water. The key takeaway is to distinguish between plain bubbly water, which is essentially water with a different texture, and sugary carbonated drinks, which can be detrimental to your health. By understanding the source and potential effects of the bubbles, you can make an informed choice that supports your hydration needs without sacrificing your health. Ultimately, the best choice is the one you will consistently drink to stay properly hydrated throughout the day.

Frequently Asked Questions

Yes, plain sparkling water is just as hydrating as still water. It consists of the same H2O base, and the added carbon dioxide gas does not interfere with the body's hydration process.

Bubbles in tap water are usually caused by dissolved atmospheric gases, like oxygen and nitrogen, coming out of solution. This happens when water temperature rises or pressure decreases after coming out of the tap.

Yes, the tiny air bubbles that make tap water appear cloudy are harmless and pose no health risk. The cloudiness will dissipate if you let the water sit for a few minutes.

Plain sparkling water has a slightly acidic pH due to carbonic acid, which can cause minor enamel erosion over time with high consumption. However, it is far less damaging than sugary soft drinks, and risks can be minimized by drinking with meals.

For some people, particularly those with sensitive digestive systems or conditions like IBS, the carbon dioxide gas in sparkling water can lead to a feeling of fullness, bloating, or burping.

Not exactly. Seltzer is artificially carbonated water. Sparkling mineral water is naturally carbonated from a mineral spring. Club soda is artificially carbonated with added salts.

Plain sparkling water has zero calories and no sugar. Some flavored varieties add sugar or artificial sweeteners, so it's important to check the label for added ingredients.

No, this is a myth. Scientific studies have shown no evidence that carbonated water causes bone loss. The misconception likely stems from studies linking sugary colas, which contain phosphoric acid, to negative bone health outcomes.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.