A typical 3 oz cooked serving of skipjack tuna contains 24 grams of protein (28.2 g per 100 g), which makes it a very good source of protein. That covers roughly 48% of the 50 g reference Daily Value, so it can anchor a high-protein meal for the day.
About 85% of the calories in skipjack tuna 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, skipjack tuna ranks 12th by protein per serving, and 63rd out of all 796 foods on the site. Set against yellowtail (hamachi), another seafood entry in the database, a serving carries about 1.2 g less protein (yellowtail (hamachi) has 25.2 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.
Lower in mercury than albacore or bluefin, which is why it dominates canned light tuna.
Source: USDA FoodData Central #172005 - "Fish, tuna, skipjack, 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
Skipjack tuna protein FAQ
How much protein is in skipjack tuna per 100 g?
Skipjack tuna has 28.2 g of protein per 100 g. A typical 3 oz cooked serving (85 g) provides 24 g.
Is skipjack tuna a complete protein?
Yes. Skipjack tuna 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.
How much of the Daily Value does a serving of skipjack tuna cover?
A 3 oz cooked serving of skipjack tuna contains 24 g of protein, about 48% of the 50 g reference Daily Value.
Is skipjack tuna a good source of protein?
Skipjack tuna is a very good source of protein, and about 85% of its calories come from protein, which makes it extremely protein-dense. Set against yellowtail (hamachi), another seafood entry in the database, a serving carries about 1.2 g less protein (yellowtail (hamachi) has 25.2 g per 3 oz cooked).