A typical 3 oz serving of smoked haddock contains 21.4 grams of protein (25.2 g per 100 g), which makes it a very good source of protein. That covers roughly 43% of the 50 g reference Daily Value, so it can anchor a high-protein meal for the day.
About 87% of the calories in smoked haddock 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, smoked haddock ranks 29th by protein per serving, and 119th out of all 796 foods on the site. Set against canned salmon, another seafood entry in the database, a serving carries about 0.5 g more protein (canned salmon has 20.9 g per 3 oz drained).
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 #174199 - "Fish, haddock, smoked" (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
Smoked haddock protein FAQ
How much protein is in smoked haddock per 100 g?
Smoked haddock has 25.2 g of protein per 100 g. A typical 3 oz serving (85 g) provides 21.4 g.
Is smoked haddock a complete protein?
Yes. Smoked haddock 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 smoked haddock cover?
A 3 oz serving of smoked haddock contains 21.4 g of protein, about 43% of the 50 g reference Daily Value.
Is smoked haddock a good source of protein?
Smoked haddock is a very good source of protein, and about 87% of its calories come from protein, which makes it extremely protein-dense. Set against canned salmon, another seafood entry in the database, a serving carries about 0.5 g more protein (canned salmon has 20.9 g per 3 oz drained).