Can You Hydrate With LaCroix? The Bubbly Truth About Sparkling Water

December 28, 2025 •

3 min read

According to a study published in the American Journal of Clinical Nutrition, plain carbonated water is just as hydrating as still water, debunking a common myth. This means you absolutely can hydrate with LaCroix and other unsweetened sparkling waters, which are primarily just water with added carbon dioxide for fizz.

Quick Summary

Unsweetened sparkling water like LaCroix provides the same hydration benefits as still water, making it a viable option for meeting daily fluid needs. The bubbles may even encourage some people to drink more, serving as a healthier, zero-calorie substitute for sugary sodas. Potential side effects like bloating should be considered.

Key Points

LaCroix Hydrates: Unsweetened sparkling water like LaCroix is just as effective for hydration as regular, still water.
A Healthy Soda Substitute: As a zero-calorie, zero-sugar, and flavorful alternative, LaCroix can help you reduce consumption of sugary beverages.
May Encourage Drinking: For some, the flavor and fizz can make it easier and more enjoyable to drink more water throughout the day.
Potential for Bloating: The carbonation in sparkling water may cause bloating or gas in individuals with sensitive digestive systems.
Consider Dental Health: Frequent sipping of any acidic beverage, including sparkling water, can potentially contribute to tooth enamel erosion over a long period.
Not an Electrolyte Drink: LaCroix does not replace electrolytes lost through heavy sweating, so athletes may need additional supplementation for optimal recovery.
Moderation is Key: Alternating between sparkling and still water is a balanced approach that can help you meet your hydration goals effectively while mitigating any potential downsides.

The Science of Hydration: Bubbles vs. Still Water

At its core, LaCroix is carbonated water, composed mainly of H₂O, just like regular water. The addition of carbon dioxide (CO₂) to create bubbles doesn't affect the body's ability to absorb the water. Scientific studies have shown no significant difference in hydration between drinking still and sparkling water. Some individuals may even drink more due to the appealing taste and fizz of sparkling water, making it helpful for those who find plain water unappealing. However, the carbonation might cause fullness or bloating, potentially leading some to drink less.

LaCroix as a Healthier Beverage Alternative

LaCroix serves as a healthier alternative to sugary drinks like sodas and juices, which are high in calories and can contribute to health issues. It provides a flavorful, fizzy experience without added sugars or artificial sweeteners, making it a good option for those reducing soda intake.

Benefits of choosing LaCroix over sugary drinks include:

Zero Calories: No calories to contribute to weight gain.
No Added Sugar: Avoids blood sugar spikes and extra calories.
Flavor Variety: Natural fruit essences offer appealing options.
No Artificial Ingredients: Uses natural flavors only.

Potential Downsides and Considerations

While generally healthy, sparkling water has potential drawbacks:

Tooth Enamel: Carbonation creates carbonic acid, making sparkling water slightly acidic. Frequent consumption could potentially erode enamel over time, although the risk is lower than with sugary sodas. Rinsing with plain water or using a straw may help.
Digestive Issues: Carbonation can cause bloating or gas in sensitive individuals. Reducing intake might be necessary if this occurs.
Electrolyte Content: LaCroix typically lacks electrolytes needed for rehydration after heavy sweating. Athletes may need other drinks to replenish electrolytes.

Comparison: LaCroix vs. Plain Water for Hydration


Feature	LaCroix (Unsweetened Sparkling Water)	Plain Water	Key Consideration
Hydration Level	Equal to still water	Equal to sparkling water	Both are effective for general hydration.
Flavor	Naturally flavored with fruit essence	Neutral, no flavor	A matter of personal preference; LaCroix can encourage higher intake for some.
Carbonation	Yes (carbon dioxide added)	No (flat)	Can cause bloating for some; not ideal during intense exercise.
Acidity (pH)	Slightly acidic due to carbonic acid	Neutral	Risk of enamel erosion with frequent consumption; mitigated by moderation.
Sodium	Generally low or no sodium	Generally no sodium	Sparkling mineral water may contain more sodium, which can be a factor for some health conditions.
Added Sugars	No	No	Neither option contains sugar, making both far superior to soda.
Electrolytes	Not typically present	Not typically present	Plain water or LaCroix are not ideal for rehydrating after intense exercise or significant sweating.

Making the Right Choice for Your Hydration Needs

The choice depends on personal preference and how it impacts your fluid intake. If LaCroix helps you drink enough water, it's a healthy choice, especially as an alternative to sugary drinks. Moderation is always important. Alternating between sparkling and still water is a balanced approach, particularly if you have digestive sensitivities or concerns about enamel. Athletes needing rapid rehydration or those losing significant fluids might benefit more from still water with electrolytes or a sports drink. The best option is one that supports consistent daily hydration.

Conclusion: The Final Verdict on LaCroix Hydration

Scientific evidence confirms that LaCroix and similar unsweetened sparkling waters are effective for hydration. They are essentially water with dissolved gas, which doesn't hinder hydration. LaCroix offers a zero-calorie, flavorful substitute for sugary sodas, promoting better health. While there are minor concerns about dental or digestive effects, these are generally manageable and should be weighed against the benefits of increased fluid intake. Prioritizing consistent daily hydration with a beverage you enjoy is key for optimal health.

Outbound Resource

For more information on the importance of hydration and fluid intake guidelines, the Centers for Disease Control and Prevention is an excellent resource: Nutrition and Healthy Eating

Frequently Asked Questions

Yes, LaCroix is just as hydrating as regular still water. The body absorbs the water content equally, as the carbonation does not interfere with the hydration process.

For many people, the variety of natural flavors and the pleasant fizziness of LaCroix can make drinking water more enjoyable, encouraging them to consume more fluids overall compared to drinking plain water.

No, LaCroix is a zero-calorie, sugar-free beverage. It uses natural fruit essences for flavor instead of added sugars or artificial sweeteners, making it a healthy option.

Due to the carbonic acid formed by the carbonation, sparkling water is slightly more acidic than still water and could potentially contribute to enamel erosion with excessive, prolonged consumption. The risk is much lower than with sugary sodas, and moderation is recommended.

If you find that the carbonation in LaCroix causes bloating or other digestive discomfort, switching to still water is a better option for you. You can also try moderating your intake of sparkling beverages.

No, LaCroix is not an effective replacement for sports drinks, especially for heavy exercisers. It does not contain the electrolytes (like sodium and potassium) that are needed to replenish what is lost during significant sweating.

Drinking LaCroix every day is generally considered safe for most people, especially as a healthier alternative to sugary drinks. Those with sensitive stomachs or concerns about dental health may want to limit their consumption to moderate amounts.

No, LaCroix does not use artificial sweeteners. It is flavored with natural fruit essences, making it a better choice for those avoiding synthetic additives.