A typical 1 piece serving of gefilte fish contains 3.8 grams of protein (9.07 g per 100 g), which makes it a moderate source of protein. That covers roughly 8% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Protein accounts for roughly 43% of the calories in gefilte fish, making it very 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, gefilte fish ranks 121st by protein per serving, and 554th out of all 796 foods on the site. Set against imitation crab (surimi), another seafood entry in the database, a serving carries about 2.7 g less protein (imitation crab (surimi) has 6.5 g per 3 oz).
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 counted by piece at 42 g. Because pieces vary, the per-100 g figure is the one to use when comparing this against a food measured a different way.
Matzo meal and sugar in the recipe cut the protein well below plain poached fish.
Source: USDA FoodData Central #171961 - "Fish, gefiltefish, commercial, sweet recipe" (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
Gefilte fish protein FAQ
How much protein is in gefilte fish per 100 g?
Gefilte fish has 9.07 g of protein per 100 g. A typical 1 piece serving (42 g) provides 3.8 g.
Is gefilte fish a complete protein?
Yes. Gefilte fish 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 gefilte fish cover?
A 1 piece serving of gefilte fish contains 3.8 g of protein, about 8% of the 50 g reference Daily Value.
Is gefilte fish a good source of protein?
Gefilte fish is a moderate source of protein, and about 43% of its calories come from protein, which makes it very protein-dense. Set against imitation crab (surimi), another seafood entry in the database, a serving carries about 2.7 g less protein (imitation crab (surimi) has 6.5 g per 3 oz).