Fish, tuna, fresh vs Fish, tuna, fresh
Side by side, per 100 g, from the same USDA reference data.
Fish, tuna, fresh has more — 144 calories per 100 g against 103 for fish, tuna, fresh, a difference of 41 kcal (40% more). On protein it is Fish, tuna, fresh 23.3 g versus fish, tuna, fresh 22.0 g per 100 g.
SOURCE·USDA SR Legacy·REVIEWED JUL 2026
Nutrient by nutrient, per 100 g
| Per 100 g | Fish, tuna, fresh | Fish, tuna, fresh | Difference |
|---|---|---|---|
| Calories | 144 kcal | 103 kcal | 41 kcal |
| Protein | 23.3 g | 22.0 g | 1.3 g |
| Total fat | 4.9 g | 1.0 g | 3.9 g |
| Saturated fat | 1.3 g | 0.3 g | 0.9 g |
| Carbohydrate | 0.0 g | 0.0 g | equal |
| Fibre | 0.0 g | 0.0 g | equal |
| Sugars | 0.0 g | — g | — |
| Sodium | 39.0 mg | 37.0 mg | 2.0 mg |
| Potassium | 252.0 mg | 407.0 mg | 155.0 mg |
| Calcium | 8.0 mg | 29.0 mg | 21.0 mg |
| Iron | 1.0 mg | 1.3 mg | 0.2 mg |
| Vitamin C | 0.0 mg | 1.0 mg | 1.0 mg |
| Vitamin A | 655.0 µg | 16.0 µg | 639.0 µg |
| Cholesterol | 38.0 mg | 47.0 mg | 9.0 mg |
| Water | 68.1 g | 70.6 g | 2.5 g |
Highlighted cells are the higher of the two. "Higher" is not automatically "better" — it depends entirely on what you are trying to do.
SOURCE·USDA SR Legacy·REVIEWED JUL 2026
How this is worked out
- Both columns are the same USDA release, per 100 g of edible portion — the only basis on which two different foods can honestly be set side by side.
- The difference column is the two published figures subtracted, not a scaled or normalised score.
- The percentage in the answer is the higher figure over the lower, minus one — a ratio, so it does not change with serving size.
difference = |A − B| (per 100 g) "% more" = (higher ÷ lower − 1) × 100
The question this page settles
Which has more calories, fish, tuna, fresh or fish, tuna, fresh?
Fish, tuna, fresh has more — 144 calories per 100 g against 103 for fish, tuna, fresh, a difference of 41 kcal (40% more). On protein it is Fish, tuna, fresh 23.3 g versus fish, tuna, fresh 22.0 g per 100 g.
Source: USDA FoodData Central, SR Legacy, reviewed JUL 2026. General information only — not medical or nutrition advice. Values are averages for a food type and vary by brand, ripeness and preparation.
