Ready & Packaged Foods
All →Vegetables & Legumes
All →Desserts & Confectionery
All →Meat & Protein
All →Grains & Bakery
All →Beverages
All →Milk & Dairy
All →
Sugar-free, plain carbonated tonic water, typically sweetened with non-sugar sweeteners and virtually calorie-free.
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
1 bottle (medium) of Sugar-free plain tonic (330 g) has 3 calories. That works out to 1 calories per 100 g. It contains 0.7 g of carbs, 0 g of protein, 0 g of fat and 0 g of fiber. Its glycemic index is 0 (low), so it raises blood sugar slowly.
Selected: 1 bottle (medium) · 330 g
3
KCAL / 330G
Carbs
0.7g
· 0% DV
Protein
0g
· 0% DV
Fat
0g
· 0% DV
Fiber
0g
· 0% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 100% · Protein 0% · Fat 0%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 3 kcal | |
| Total fat | 0 g | 0% |
| Saturated fat | 0 g | 0% |
| Trans fat | 0 g | |
| Sodium | 26 mg | 1% |
| Total carbohydrate | 0.7 g | 0% |
| Fiber | 0 g | 0% |
| Protein | 0 g | 0% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
Log this food in EatBetter
100,000+ people use it
📸 Scan the code to get the app free.

| Serving | Amount | Calories |
|---|---|---|
| 1 bottle (medium) | 330 g | 3 kcal |
| 100 g | 100 g | 1 kcal |
| 1 can (mini) | 150 g | 2 kcal |
| 1 bottle (small) | 200 g | 2 kcal |
| 1 serving (small) | 200 g | 2 kcal |
| 1 cup (medium) | 240 g | 2 kcal |
| 1 can (medium) | 250 g | 3 kcal |
| 1 serving (large) | 330 g | 3 kcal |
| 1 bottle (large) | 500 g | 5 kcal |
Calculated from 1 calories per 100 g.
Quinine gives sugar-free plain tonic its characteristic bitter edge. Carbonation and non-sugar sweeteners balance that bitterness, while the plain version has no added fruit flavor; serving it cold can make the taste seem smoother.
Yes, sugar-free plain tonic contains quinine, the bitter ingredient that defines tonic water. The amount used in the drink is not the same as a medicinal dose of quinine.
No, sugar-free plain tonic is generally caffeine-free. Its bitterness comes from quinine rather than caffeine, so it does not have coffee’s or caffeinated tea’s usual stimulating effect.
Sugar-free plain tonic contains quinine and sweeteners, while sparkling water is simply carbonated water, sometimes with minerals. Tonic therefore tastes bitter and slightly sweet; it is not a like-for-like substitute when you want neutral bubbles.
Yes, sugar-free plain tonic can be enjoyed on its own, especially chilled or over ice. Its quinine bitterness is more noticeable without a mixer, so a squeeze of lime or lemon can make it more refreshing.
Sugar-free plain tonic works with vodka, white rum, and nonalcoholic spirit alternatives. Citrus, cucumber, or herbs can add flavor without masking its bitter character; add the tonic last to keep the drink fizzy.
No, sugar-free plain tonic does not prevent malaria or treat leg cramps. Its quinine content is far below medicinal doses, and tonic water is not a substitute for antimalarial medicine or proper care for persistent cramps.
Sugar-free plain tonic is best kept tightly capped in the refrigerator after opening. It may remain drinkable for a while, but carbonation fades quickly, so use it soon if you want its intended fizz and taste.
Usually, sugar-free plain tonic has much less effect on blood glucose than a sugar-sweetened tonic because it uses non-sugar sweeteners. Sweeteners differ among products, so people managing diabetes should consider how their own glucose responds.
Sugar-free plain tonic contributes to fluid intake, but it is not necessary to use it as your main drink. Its quinine and sweeteners give it a distinctive taste, while plain water remains a straightforward everyday choice.
Vitamins
Vitamin A
0µg · 0% DV
B1
0mg · 0% DV
B2
0mg · 0% DV
B3
0mg · 0% DV
Minerals
Sodium
26mg · 1% DV
Calcium
3.3mg · 0% DV
Potassium ⭐
6.6mg · 0% DV
Iron
0mg · 0% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 3 calories in 1 bottle (medium) (330 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
Sugar-free plain tonic is a carbonated soft drink flavoured with quinine, which gives it its characteristic bitterness, and sweetened without sugar. Tonic water grew out of quinine drinks associated with British colonial-era efforts to prevent malaria; today it is enjoyed mainly as a mixer or a crisp drink in its own right.
Its taste is gently bitter, lightly sweet and often citrusy. Serve it well chilled, over ice with a wedge of lemon or lime, or use it in mixed drinks; in many places it is also a familiar bar staple. With no sugar and virtually no calories, it can suit people looking to reduce sugar, though anyone avoiding non-sugar sweeteners should check the label. Extra citrus and ice keep the glass refreshing without adding sweetness.
Low
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Medium
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
NOVA 3
Processed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
No known major allergens
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
✓ Suitable
Low FODMAP
— Not suitable
SATURATED
0g
MONOUNSATURATED
0g
POLYUNSATURATED
0g
Ask the AI nutrition coach — calories, portions, alternatives and more, answered in seconds in the app.
Nutrition data compiled from USDA FoodData Central and scientific sources.