Tuna contains almost no carbohydrate, so it has no meaningful glycemic index and a glycemic load of 0. Per 100 g it provides 86 calories, 19.4 g protein, 0 g carbohydrate (0 g fiber, 0 g sugars) and 1 g fat.

Serving used for glycemic load: 1 oz (28 g).
| Nutrient | Per 100 g | Per serving |
|---|---|---|
| Calories | 86 kcal | 24 kcal |
| Protein | 19.4 g | 5.4 g |
| Carbohydrate | 0 g | 0 g |
| Fiber | 0 g | 0 g |
| Sugars | 0 g | 0 g |
| Fat | 1 g | 0.3 g |
| Saturated fat | 0.2 g | 0.1 g |
| Sodium | 247 mg | 69 mg |
| Potassium | 179 mg | 50 mg |
Other proteins with a lower glycemic load per serving:
| Food | GI | GL / serving |
|---|---|---|
| Chicken Breast | 0 | 0 |
| Egg | 0 | 0 |
| Fried Egg | 0 | 0 |
| Ground Beef | 0 | 0 |
| Ground Chicken | 0 | 0 |
Tuna contains almost no carbohydrate, so on its own it has very little direct effect on blood glucose. Its glycemic load is 0.
Tuna has 86 calories per 100 g, and about 24 calories in a 1 oz (28 g) serving.
Photograph your plate, scan a barcode or say what you ate. NutriOptio grades every food for glycemic load, Nutri-Score and processing, weighted to your goal.
Open the free web appGlycemic index: NutriOptio's reference table, compiled from the University of Sydney GI database and the international tables of glycemic index and glycemic load; the range reflects variation across studies, ripeness and preparation. Nutrition: USDA FoodData Central, SR Legacy, “Fish, tuna, light, canned in water, drained solids (Includes foods for USDA's Food Distribution Program)” (FDC 173709). Glycemic load = GI × available carbohydrate (carbohydrate minus fiber) per serving ÷ 100. Nutri-Score computed with the 2017 general-food algorithm.
General information, not medical advice.
Glycemic load explainedGlycemic index guideNutri-ScoreNOVAAll foods