Tonic water
High GI
GL 28 per typical can (400 g) · GL 7 per 100 g
- Hydrating water base
- High added sugar content
Tonic water has a glycemic index of 75 (High). One typical can (400 g) adds a glycemic load of 28.
Updated Apr 2, 2026 · Sources: Logi Nutrition Team (USDA-derived composition, AI-assisted) · Not medical advice · Report an error
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Tonic water is one of the 11,117 foods Logi scores when you photograph a meal — with the portion.
Nutrition Facts (per 100g)
per 100g
| Calories | 35 kcal |
| Carbohydrates | 9 g |
| Sugars (Total) | 8.9 g |
| Natural | 0 g |
| Added | 8.9 g |
| Fiber | 0 g |
| Soluble | 0 g |
| Insoluble | 0 g |
| Protein | 0 g |
| Fat | 0 g |
| Saturated | 0 g |
| Unsaturated | 0 g |
| Sodium | 2 mg |
Processing Level
Why this score?
- Hydrating water base
- Low calorie density per serving
- High added sugar content
- High glycemic index
- Zero nutritional value
Allergens
No EU-14 allergen listed
Low-GI recipes on Logi Food Coach
Frequently Asked Questions
What is the glycemic index of Tonic water?
Tonic water has a glycemic index of 75 (High). One typical can (400 g) has a glycemic load of 28; per 100 g the glycemic load is 7.
Is Tonic water good for people with insulin resistance?
Tonic water has a high glycemic index (75), which means it causes rapid blood sugar spikes. People with insulin resistance should limit their intake.
How does Tonic water affect blood sugar?
Tonic water has a glycemic load of 7 per 100g, which indicates a minimal impact on blood sugar levels.
Related foods
Check Tonic water in the Logi app, with your portion.
