Salmon is naturally free of carbohydrates, including fiber and sugar.
A 3-ounce serving of raw salmon has 5.4 grams of fat. Of this, about 1.5 grams are from beneficial omega-3 fatty acids including EPA and DHA. Less than 1 gram comes from saturated fat.
The fatty acid profile of salmon varies depending on whether it is farm-raised or wild-caught. Farmed salmon is higher in fat content overall, including saturated fat. Wild salmon is leaner.2
There are 17 grams of protein in a 3-ounce fillet of raw, wild-caught salmon. Because farm-raised salmon has more fat, it contains slightly less protein by weight. Regardless, salmon is an excellent source of high-quality protein that provides all of the essential amino acids our bodies require.