A typical 3 oz cooked serving of orange roughy contains 19.2 grams of protein (22.6 g per 100 g), which makes it a very good source of protein. That covers roughly 38% of the 50 g reference Daily Value, so it can anchor a high-protein meal for the day.
About 86% of the calories in orange roughy 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, orange roughy ranks 68th by protein per serving, and 178th out of all 796 foods on the site. Set against coho salmon, another seafood entry in the database, a serving carries about 0.7 g less protein (coho salmon has 19.9 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 #174251 - "Fish, roughy, orange, 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
Orange roughy protein FAQ
How much protein is in orange roughy per 100 g?
Orange roughy has 22.6 g of protein per 100 g. A typical 3 oz cooked serving (85 g) provides 19.2 g.
Is orange roughy a complete protein?
Yes. Orange roughy 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 orange roughy cover?
A 3 oz cooked serving of orange roughy contains 19.2 g of protein, about 38% of the 50 g reference Daily Value.
Is orange roughy a good source of protein?
Orange roughy is a very good source of protein, and about 86% of its calories come from protein, which makes it extremely protein-dense. Set against coho salmon, another seafood entry in the database, a serving carries about 0.7 g less protein (coho salmon has 19.9 g per 3 oz cooked).