Tonic Water vs Sparkling Water: Calories and Nutrition Compared (2026)

Tonic water contains calories, while sparkling water does not.

Medically reviewed by Dr. Emily Torres, Registered Dietitian Nutritionist (RDN)

Tonic water has 34 calories and 0 g of protein, while sparkling water has 0 calories and 0 g of protein. Therefore, sparkling water is lower in calories and both have no protein.

Tonic water and sparkling water are popular beverages with distinct nutritional profiles. This comparison examines their calorie content, macronutrients, and overall health implications.

What Is the Difference Between Tonic Water and Sparkling Water?

Tonic water is a carbonated soft drink that contains water, sugar, and quinine, giving it a unique flavor. It is commonly used as a mixer in cocktails. Sparkling water is carbonated water that may or may not contain added minerals for flavor. It is often consumed as a refreshing, calorie-free beverage.

Tonic Water vs Sparkling Water: Nutrition Side by Side

Below is a side-by-side comparison of tonic water and sparkling water to highlight their nutritional differences.

Nutrient (per 100 g) Tonic water Sparkling water
Calories 34 kcal 0 kcal
Protein 0 g 0 g
Carbs 8.8 g 0 g
Sugar 8.8 g 0 g
Fat 0 g 0 g
Fiber 0 g 0 g
Sodium 12 mg 4 mg

Which Is Better, Tonic Water or Sparkling Water?

For weight loss: Tonic water has 34 calories per 100 g, while sparkling water has 0 calories. Therefore, sparkling water is the better option for weight loss.

For muscle and protein: Both tonic water and sparkling water contain 0 g of protein per 100 g, meaning neither is beneficial for muscle building.

For low-carb or low-sugar: Tonic water has 8.8 g of carbs and 8.8 g of sugar per 100 g, while sparkling water has 0 g of carbs and 0 g of sugar. Sparkling water is the better choice for low-carb or low-sugar diets.

How to Track Tonic water and Sparkling water Accurately

It's easy to misjudge portion sizes and macros in beverages, which can affect overall dietary goals. Nutrola is an AI nutrition tracking app that identifies foods from a photo and returns calories and macros from a database of more than 1.8 million foods. It also supports barcode scanning and voice logging. Nutrola is available from EUR 2.50 per month and shows no ads on any tier.

How We Compiled These Numbers

The numbers provided are rounded reference values for educational use and should not be considered medical advice. Always consult a healthcare professional for personalized guidance. Values are per 100 g from USDA FoodData Central.

Frequently Asked Questions (FAQ)

Which has more protein?

Both tonic water and sparkling water contain 0 g of protein per 100 g.

Which has fewer calories?

Sparkling water has 0 calories per 100 g, while tonic water has 34 calories.

What is the sugar content in tonic water?

Tonic water contains 8.8 g of sugar per 100 g.

How much sodium is in sparkling water?

Sparkling water contains 4 mg of sodium per 100 g.

What are the carbs in sparkling water?

Sparkling water contains 0 g of carbs per 100 g.

What is the fat content in tonic water?

Tonic water contains 0 g of fat per 100 g.

Key Takeaways

  • Tonic water has 34 calories per 100 g.
  • Sparkling water has 0 calories per 100 g.
  • Tonic water contains 8.8 g of carbs per 100 g.
  • Sparkling water contains 0 g of carbs per 100 g.
  • Tonic water has 8.8 g of sugar per 100 g.
  • Both beverages contain 0 g of fat and 0 g of protein.

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