How many carbs are in canned tuna?
Tuna (canned, in water) contains almost no carbohydrate: 0 g per 100 g. What it does carry is fat and protein, which raise blood sugar slowly and late; see the fat-protein units below.
Add to your plate
0 g carbs · 149 kcal
At a glance
- Carbs / 100 g
- 0 g
- 1 can (drained) (140 g)
- 0 g
- Fibre / 100 g
- 0 g
- kcal / 100 g
- 107
- FPU / 100 g
- 1.1
Carbohydrate per portion
| Portion | Weight | Carbs | Fibre | kcal | FPU |
|---|---|---|---|---|---|
| Half a can | 70 g | 0 g | 0 g | 75 | 0.7 |
| 1 can (drained) | 140 g | 0 g | 0 g | 149 | 1.5 |
| 100 g | 100 g | 0 g | 0 g | 107 | 1.1 |
The slow rise (fat-protein units)
1 can (drained) of canned tuna (140 g) carries 1.7 g of fat and 34 g of protein, which is 1.5 fat-protein units. That is enough for a slow rise of about 3 hours after the carbohydrate’s own peak. Counted the way the app counts it, at 10 g of carbohydrate per unit, the whole glucose load of the portion is about 15 g.
Nutrition per 100 g
| Energy | 107 kcal |
| Fat | 1.2 g |
| of which saturates | 0.2 g |
| Carbohydrate (available) | 0 g |
| of which sugars | 0 g |
| Fibre | 0 g |
| Protein | 23.9 g |
| Salt | 0.7 g |
Source: Frida – Fødevaredata, DTU Fødevareinstituttet, FCDB v6.1 - May 2026. Frida entry: “Tuna, in water, canned” (Fish products). Fetched 2026-09-22. Frida’s carbohydrate figure is available carbohydrate, which already excludes fibre.
More in meat, fish and cold cuts
- Chicken breast
- Salmon
- Liver pâté
- Chicken thigh
- Cod (cooked)
- Fish cake
- Medister sausage
- Mayonnaise
- Remoulade
- Minced beef
- Meat, fish and cold cuts
- Carb counter
Figures are general nutrition information and do not replace advice from your doctor or dietitian. This page does not calculate insulin and is not a medical device.
Scan the whole meal instead
The Kairi app scans a dish, a menu or a barcode and scores it for your blood sugar, using the same carbohydrate and fat-protein arithmetic as these pages.
