Protein content
A 3 oz cooked serving of tuna steak (yellowfin) contains 24.8 g of protein - a very good source of protein, about 50% of the 50 g Daily Value.
Share of this food's calories that come from protein - it is extremely protein-dense.
| Serving | 3 oz cooked (85 g) |
|---|---|
| Protein per serving | 24.8 g |
| Protein per 100 g | 29.2 g |
| Calories per serving | 111 kcal |
| Protein density | 90% of calories |
| Share of 50 g Daily Value | 50% |
| Protein quality | Complete protein |
| Category | Seafood |
| Food type | Whole food |
| USDA record | FoodData Central #172006 |
A typical 3 oz cooked serving of tuna steak (yellowfin) contains 24.8 grams of protein (29.2 g per 100 g), which makes it a very good source of protein. That covers roughly 50% of the 50 g reference Daily Value, so it can anchor a high-protein meal for the day.
About 90% of the calories in tuna steak (yellowfin) come from protein, which makes it extremely protein-dense - close to the practical ceiling for a whole food. Foods in this band are the ones that let you raise your protein intake without raising your calorie intake much at all.
Among the 121 seafood in the database, tuna steak (yellowfin) ranks 9th by protein per serving, and 47th out of all 796 foods on the site. Set against fish roe, another seafood entry in the database, a serving carries about 0.5 g more protein (fish roe has 24.3 g per 3 oz cooked).
It is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own. The serving above is measured by weight at 85 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Rich in leucine, the amino acid that most strongly triggers muscle-protein synthesis.
Source: USDA FoodData Central #172006 - "Fish, tuna, yellowfin, fresh, cooked, dry heat" (SR Legacy, published 4/1/2019). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Tuna steak (yellowfin) has 29.2 g of protein per 100 g. A typical 3 oz cooked serving (85 g) provides 24.8 g.
Yes. Tuna steak (yellowfin) is a complete protein - it supplies all nine essential amino acids in adequate amounts, so it can carry a meal's protein on its own.
A 3 oz cooked serving of tuna steak (yellowfin) contains 24.8 g of protein, about 50% of the 50 g reference Daily Value.
Tuna steak (yellowfin) is a very good source of protein, and about 90% of its calories come from protein, which makes it extremely protein-dense. Set against fish roe, another seafood entry in the database, a serving carries about 0.5 g more protein (fish roe has 24.3 g per 3 oz cooked).
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