A typical 3 oz cooked serving of whelk contains 40.5 grams of protein (47.7 g per 100 g), which makes it an excellent source of protein. That covers roughly 81% of the 50 g reference Daily Value, so it can anchor a high-protein meal for the day.
About 69% of the calories in whelk 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, whelk ranks 1st by protein per serving, and 2nd out of all 796 foods on the site. Set against conch, another seafood entry in the database, a serving carries about 7.1 g more protein (conch has 33.4 g per 1 cup sliced).
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 #171984 - "Mollusks, whelk, unspecified, cooked, moist 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
Whelk protein FAQ
How much protein is in whelk per 100 g?
Whelk has 47.7 g of protein per 100 g. A typical 3 oz cooked serving (85 g) provides 40.5 g.
Is whelk a complete protein?
Yes. Whelk 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 whelk cover?
A 3 oz cooked serving of whelk contains 40.5 g of protein, about 81% of the 50 g reference Daily Value.
Is whelk a good source of protein?
Whelk is an excellent source of protein, and about 69% of its calories come from protein, which makes it extremely protein-dense. Set against conch, another seafood entry in the database, a serving carries about 7.1 g more protein (conch has 33.4 g per 1 cup sliced).