Calories in Sparkling Water: Full Nutrition Breakdown

Plain, unflavored sparkling water contains zero calories, making it a perfect calorie-free alternative to sugary sodas and juices. It is simply water that has been infused with carbon dioxide under pressure, providing the same hydration as still water with a refreshing effervescence. Most naturally flavored sparkling waters also contain zero calories, though varieties with added sweeteners can carry a modest calorie count.

Calories by serving size:

The key nutritional difference between sparkling water brands comes down to mineral content and whether any sweeteners are added. Natural mineral sparkling waters like Topo Chico and Perrier contain trace amounts of sodium and other minerals from their source, but remain calorie-free. Flavored varieties that use only natural essences — such as LaCroix and standard Bubly — also have zero calories, while those with added sweeteners contribute a minimal amount of calories and carbohydrates.

Frequently Asked Questions (FAQ)

Does sparkling water have calories?

Plain sparkling water and most naturally flavored sparkling waters contain zero calories. The carbonation itself adds no calories, sugar, or other macronutrients. The only sparkling water products that contain calories are those with added sugar, juice, or caloric sweeteners, so it is important to check the label on flavored varieties.

Is sparkling water as healthy as still water?

Sparkling water is equally hydrating as still water and can count fully toward your daily fluid intake. Research has shown no significant differences in hydration levels between carbonated and non-carbonated water. The only consideration is that sparkling water may cause bloating or gas in some individuals due to the dissolved carbon dioxide.

Does carbonation harm your teeth?

Plain sparkling water is slightly more acidic than still water (pH around 3 to 4), but studies have found that it poses minimal risk to tooth enamel — far less than sodas or citrus juices. The erosion potential increases significantly when citric acid or sugar is added, as in flavored sodas. Drinking plain sparkling water is considered safe for dental health by most dental professionals.

How does sparkling water compare to soda?

A 12 oz can of regular cola contains about 140 calories and 39 grams of sugar, while plain sparkling water has zero of both. Even diet soda, while calorie-free, contains artificial sweeteners and additives that sparkling water does not. Sparkling water offers the same fizzy sensation as soda without any calories, sugar, or artificial ingredients.

What is the difference between club soda, seltzer, and tonic water?

Seltzer is simply carbonated water with no additives, while club soda is carbonated water with added minerals like sodium bicarbonate and potassium sulfate, giving it a slightly salty taste but still zero calories. Tonic water is the outlier — it contains quinine for its bitter flavor and is sweetened with sugar, adding about 124 calories and 32 grams of sugar per 12 oz serving. If you are watching your calorie intake, seltzer and club soda are the zero-calorie choices, while tonic water should be treated more like a soft drink.