A typical 3 oz cooked serving of pacific herring contains 17.9 grams of protein (21 g per 100 g), which makes it a very good source of protein. That covers roughly 36% of the 50 g reference Daily Value, so it can anchor a high-protein meal for the day.
Protein accounts for roughly 34% of the calories in pacific herring, making it moderately protein-dense. The rest comes from fat and carbohydrate, so it adds a solid amount of protein while still carrying real energy - useful when you are eating to a calorie target rather than under one.
Among the 121 seafood in the database, pacific herring ranks 76th by protein per serving, and 192nd out of all 796 foods on the site. Set against scallops, another seafood entry in the database, a serving carries about 0.5 g more protein (scallops has 17.4 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.
Source: USDA FoodData Central #174233 - "Fish, herring, Pacific, 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
Pacific herring protein FAQ
How much protein is in pacific herring per 100 g?
Pacific herring has 21 g of protein per 100 g. A typical 3 oz cooked serving (85 g) provides 17.9 g.
Is pacific herring a complete protein?
Yes. Pacific herring 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 pacific herring cover?
A 3 oz cooked serving of pacific herring contains 17.9 g of protein, about 36% of the 50 g reference Daily Value.
Is pacific herring a good source of protein?
Pacific herring is a very good source of protein, and about 34% of its calories come from protein, which makes it moderately protein-dense. Set against scallops, another seafood entry in the database, a serving carries about 0.5 g more protein (scallops has 17.4 g per 3 oz cooked).