🐟 Seafoodhigh proteinlow carbketo friendly
🐠 Calories in Tuna
High-protein, ultra-low-fat — the bodybuilder's staple fish
Per 100g
116kcal
26g
Protein
0g
Carbs
1g
Fat
Calculate Your Serving
Full Nutrition Facts — Per 100g
| Nutrient | Per 100g | Per 1 can tuna in water, drained (130g) |
|---|---|---|
| Calories | 116kcal | 151kcal |
| Protein | 26g | 33.8g |
| Total Carbs | 0g | 0g |
| — of which Sugar | 0g | 0g |
| Total Fat | 1g | 1.3g |
| Dietary Fibre | 0g | 0g |
| Sodium | 333mg | 433mg |
Macro Breakdown
Protein26g (104 kcal)
Carbohydrates0g (0 kcal)
Fat1g (9 kcal)
All values per 100g. Protein & carbs = 4 kcal/g · Fat = 9 kcal/g
Key Vitamins & Minerals
Potassium237mg
7% of daily reference intake
Omega-30.5g
31% of daily reference intake
Cholesterol49mg
16% of daily reference intake
✅ Key Nutrition Facts
- •26g protein per 100g — exceptional protein density
- •Only 116 calories per 100g — one of the leanest proteins
- •Under £1 per serving — most affordable protein source
- •No prep time — ready to eat straight from the can
Calories by Serving Size
| Serving | Grams | Calories | Protein |
|---|---|---|---|
| 100g (in water, drained) | 100g | 116 kcal | 26g |
| 1 standard can, drained (130g) | 130g | 151 kcal | 33.8g |
| 1 large can, drained (185g) | 185g | 215 kcal | 48.1g |
| 3oz serving | 85g | 99 kcal | 22.1g |
Frequently Asked Questions
How many calories are in a can of tuna?+
A standard 130g can of tuna in spring water (drained) contains approximately 150 calories and 34g of protein. A larger 185g can provides around 215 calories and 48g of protein.
Is tuna good for weight loss?+
Tuna is one of the best foods for weight loss — extremely high in protein, very low in calories and fat. The high protein content promotes satiety, preserves muscle during a deficit, and has a higher thermic effect than fat or carbohydrates.
How much tuna is safe to eat per week?+
Most health agencies (NHS, FDA) recommend limiting canned tuna to 2–4 servings per week due to mercury content. Skipjack tuna (used in most canned tuna) is lower in mercury than albacore/yellowfin. Pregnant women should follow the more conservative guidelines.
Tuna in water vs tuna in oil — which is better?+
Tuna in spring water is better for fat loss — around 116 kcal per 100g vs ~200 kcal for oil-packed. Tuna in olive oil is slightly more flavourful and provides additional healthy fats. For strict calorie control, always choose water-packed.
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Data source: USDA FoodData Central & peer-reviewed nutritional references. Values are averages — actual nutrient content varies by brand, preparation method, and growing conditions. Not medical advice.