A standard 3-ounce cooked serving of salmon provides 22 to 24 grams of protein, depending on the species. That makes salmon one of the most protein-dense foods you can eat, delivering a complete set of essential amino acids in every serving.
Protein by Species
Not all salmon is created equal when it comes to protein. According to USDA data, here’s how the major species compare per 100 grams (about 3.5 ounces) of raw fish:
- Sockeye (Red): 21.3 g protein
- Chinook (King): 20.2 g protein
- Atlantic, farmed: 19.9 g protein
- Atlantic, wild: 19.8 g protein
- Pink: 19.9 g protein
Sockeye leads the pack, and it’s also one of the leaner species. Once cooked, the protein concentrates as water evaporates, which is why a 3-ounce cooked portion ends up higher than these raw numbers suggest. The FDA puts cooked Atlantic, Coho, Sockeye, and Chinook salmon at 24 grams of protein per 3-ounce serving, while the leaner Chum and Pink varieties come in at 22 grams.
What a Typical Serving Looks Like
Three ounces of cooked salmon is roughly the size of a deck of cards. Most restaurant portions and pre-cut fillets are closer to 5 or 6 ounces, which means a typical dinner serving delivers 37 to 48 grams of protein. That’s a significant chunk of the daily target for most adults, which falls between 46 and 56 grams at the minimum recommendation (though active people and older adults often benefit from more).
If you’re eating canned salmon, the protein holds up well. A 3-ounce portion of canned pink salmon provides roughly 17 to 20 grams of protein depending on whether it’s drained or packed in liquid. Canned salmon also contains soft, edible bones, which adds calcium that fresh fillets don’t provide.
How Salmon Compares to Chicken and Other Proteins
Salmon has slightly less protein per calorie than chicken breast. A 3.5-ounce cooked portion of chicken breast delivers about 33 grams of protein for 187 calories, while the same amount of farmed salmon provides 22 grams of protein for 206 calories. The difference comes down to fat: salmon carries more of it, and most of that fat is the omega-3 type your body can’t make on its own.
So if your only goal is maximizing protein per calorie, chicken breast wins. But protein quality isn’t just about quantity. Salmon protein is highly digestible, with over 90% of its amino acids absorbed during digestion. For adults over age 3, whole salmon protein scores at or above 100 on the DIAAS scale, the gold standard for measuring protein quality. A score of 100 or higher is classified as “excellent,” meaning salmon delivers all the essential amino acids your body needs in the right proportions.
Why Salmon Protein Is Especially Useful for Muscle
Salmon is rich in leucine, the amino acid that acts as a trigger for muscle repair and growth. A 3-ounce serving of cooked wild coho salmon contains about 1.9 grams of leucine, which is close to the 2 to 3 gram threshold that research suggests is needed to maximally stimulate muscle building after exercise.
Research from the University of Illinois found something interesting: eating whole salmon after resistance training produced a better muscle-building response than consuming a processed mixture containing the exact same nutrients in the same proportions. The researchers noted that fattier whole foods like salmon and whole eggs consistently outperformed lower-fat alternatives and supplements for post-workout muscle repair. The fat naturally present in salmon appears to enhance how your body uses the protein, not hinder it.
Wild vs. Farmed: Does It Matter for Protein?
When it comes to protein alone, wild and farmed Atlantic salmon are nearly identical, at 19.8 and 19.9 grams per 100 grams raw, respectively. The real difference is in fat composition. A 3-ounce wild fillet has roughly half the total fat of a farmed fillet. Farmed salmon contains more omega-3s in absolute terms, but it also carries more than double the saturated fat.
Both are excellent protein sources. If you’re choosing between them, the decision is more about fat profile, cost, and environmental preferences than protein content.
Getting the Most Protein From Your Salmon
Cooking method matters less than you might think. Baking, grilling, poaching, and pan-searing all preserve salmon’s protein content. What reduces the protein you actually eat is portion size and what you add to the dish. A fillet drenched in a sugary glaze or wrapped in pastry shifts the calorie-to-protein ratio significantly.
For the highest protein concentration, stick with sockeye or chinook prepared simply. A 6-ounce sockeye fillet, baked or grilled, gives you roughly 40 to 45 grams of high-quality, highly digestible protein along with omega-3 fats, B vitamins, and selenium.