Tuna
No glycemic index8/10
No glycemic index — no carbohydrates
0 g carbohydrates per 100 g
Logi score 8/10
- About 29 g of protein per 100 g, one of the highest of any fish
- A large predatory fish: tuna carries more mercury than small fish such as sardines
Tuna has no glycemic index: it contains no carbohydrates.
Reviewed Aug 6, 2026 · Sources: Logi Nutrition Team (USDA-derived composition, AI-assisted, human-reviewed) · Not medical advice · Report an error
Instead of this
- no GI Another fish for steaks and bowls, with about 2 g of omega-3 fats per 100 g instead of a fraction of a gram.
Salmon - no GI A small oily fish that works in salads and on bread like canned tuna, with more omega-3 fats and less mercury.
Sardines - no GI A lean white fish with about 23 g of protein and under 1 g of fat per 100 g, and far less mercury than tuna.
Cod fillet - no GI Lean protein for salads and sandwiches: about 31 g of protein per 100 g, with no mercury.
Chicken breast
Forms of Tuna
Logi · Manage Insulin Resistance
Lower your blood sugar through smarter food choices
Tuna is one of the 11,150 foods Logi scores when you photograph a meal — with the portion.
Portions
| Portion | Grams |
|---|---|
| 1 cube (1 inch) | 16 g |
| 1 oz | 28 g |
| 3 oz | 85 g |
| 1 tuna steak | 154 g |
Nutrition Facts (per 100g)
130
Calories
0 g
Carbs
29.15 g
Protein
0.59 g
Fat
per 100g
| Calories | 130 kcal |
| Carbohydrates | 0 g |
| Sugars (Total) | 0 g |
| Natural | 0 g |
| Added | 0 g |
| Fiber | 0 g |
| Soluble | 0 g |
| Insoluble | 0 g |
| Protein | 29.15 g |
| Fat | 0.59 g |
| Saturated | 0.18 g |
| Unsaturated | 0.41 g |
| Sodium | 39 mg |
Processing Level
10%
Minimal
Why this score?
- About 29 g of protein per 100 g, one of the highest of any fish
- Very lean: under 1 g of fat and about 130 kcal per 100 g
- No carbohydrate: glycemic load 0
- A large predatory fish: tuna carries more mercury than small fish such as sardines
- Lean flesh has only a fraction of the omega-3 fats of salmon or mackerel
Calculate the glycemic load of a meal with Tuna
Allergens
Contains: fish
Recipes with Tuna
Frequently Asked Questions
What is the glycemic index of Tuna?
Tuna has no glycemic index because it contains no carbohydrates (0 g per 100 g).
Is Tuna good for people with insulin resistance?
Tuna contains no carbohydrates, so on its own it does not raise blood sugar.
Check Tuna in the Logi app, with your portion.
