What's in a Can of LaCroix?
Before digging into the health concerns, it's important to understand the ingredients. According to the company, a standard can of flavored LaCroix contains just two ingredients: carbonated water and "natural flavor". This is in stark contrast to sugary sodas or diet drinks that contain artificial sweeteners and a long list of chemicals. This simple ingredient list is one of the main reasons LaCroix has become a popular alternative for those looking to cut back on sugar.
The "Natural Flavor" Controversy
The most significant public concern has centered around the term "natural flavor." A 2018 class-action lawsuit alleged that LaCroix was falsely labeling its product as "100% natural," claiming it contained synthetic ingredients. The lawsuit specifically cited chemicals like linalool, which is also used in cockroach insecticide.
However, the manufacturer and independent food safety experts defended the ingredients, explaining that chemicals like linalool and limonene are naturally occurring compounds found in many plants and spices. The FDA and other expert committees have deemed these flavoring agents as safe for consumption at the levels used. The lawsuit was ultimately dismissed, but the concern has lingered for some consumers.
Potential Health Concerns of Sparkling Water
While LaCroix is a healthier alternative to sugary drinks, it is not completely without potential side effects. Most of these effects are not unique to LaCroix but are common to all carbonated beverages.
Impact on Dental Health
The primary concern is the effect of carbonation on tooth enamel. When water is carbonated, a small amount of carbonic acid is formed, making the water slightly acidic. This weak acid can cause enamel erosion over time, though it is far less harmful than the highly acidic and sugary content of sodas. Studies have shown that while some sparkling waters can have a corrosive effect on enamel, they are significantly less damaging than sugary drinks or fruit juices. Flavored versions may be slightly more acidic than unflavored, but the risk is still low.
To mitigate this, dentists suggest a few simple habits:
- Drink sparkling water with meals, not continuously throughout the day.
- Use a straw to minimize contact with your teeth.
- Rinse your mouth with plain water after finishing your sparkling water.
Digestive System Effects
For some individuals, the carbonation in sparkling water can cause gastrointestinal distress. This can manifest as bloating, gas, or belching. While not harmful, it can be uncomfortable, especially for people with pre-existing conditions like irritable bowel syndrome (IBS) or gastroesophageal reflux disease (GERD). If you experience these symptoms, it's best to reduce your consumption.
Is LaCroix Unhealthy for Weight Loss?
LaCroix is often marketed as a weight-loss friendly alternative to soda, and for the most part, this holds true. It contains zero calories, sugar, and artificial sweeteners, making it an excellent swap for high-calorie beverages. The bubbles can also increase feelings of fullness, potentially helping to reduce overall calorie intake. However, some research has produced conflicting results regarding its effect on the hunger hormone ghrelin, suggesting it might increase appetite in some cases. More research is needed in this area, and ultimately, LaCroix's impact on weight loss is minimal compared to a balanced diet and regular exercise.
Comparison: LaCroix vs. Other Beverages
| Feature | LaCroix Sparkling Water | Sugary Soda (e.g., Cola) | Diet Soda | Tap Water | 
|---|---|---|---|---|
| Calories | 0 | ~150 per 12oz can | 0 | 0 | 
| Sugar | 0 | High Fructose Corn Syrup | Artificial Sweeteners | 0 | 
| Acidity (pH) | Slightly acidic (5–6) | Highly acidic (2.5–3.5) | Highly acidic (2.5–3.5) | Neutral (7) | 
| Dental Risk | Low (some enamel erosion) | Very High (sugar + acid) | High (acidic) | Very Low | 
| Natural Ingredients | Yes, carbonated water and fruit essences | No, synthetic flavors and sweeteners | No, synthetic flavors and sweeteners | Yes, filtered water | 
| Digestion | May cause bloating/gas | Often causes bloating/gas | Often causes bloating/gas | No negative effects | 
The Verdict: Is LaCroix Unhealthy?
In short, no, LaCroix is not inherently unhealthy for the majority of people. For most consumers, it provides a hydrating, flavorful alternative to sugary sodas or juices without adding calories or artificial sweeteners. The mild acidity poses a lower risk to teeth than most flavored or carbonated beverages, especially when consumed mindfully. While some might experience minor digestive issues like gas or bloating, these effects are typically harmless and can be managed by moderating intake.
Ultimately, LaCroix and similar plain sparkling waters are far healthier choices than alternatives high in sugar and calories. When consumed in moderation, it is a safe and refreshing part of a healthy diet, helping many people stay hydrated and avoid less healthy habits.
Conclusion
Despite sensationalized headlines and lingering questions about its ingredients, LaCroix sparkling water is a healthy beverage for most people. Its simple formula of carbonated water and natural fruit essences offers a guilt-free way to enjoy a fizzy drink. Concerns regarding dental erosion and digestion are valid, but these effects are minimal compared to sugary alternatives and can be mitigated with common sense practices. For those seeking to reduce sugar intake and stay hydrated, LaCroix remains an excellent and convenient option.
For more detailed information on beverage ingredients and their health impacts, consider exploring resources from the Institute of Food Technologists.