Rainbow trout (Oncorhynchus mykiss) is a delicate, mild-tasting freshwater and anadromous fish belonging to the salmon family (Salmonidae). Widely farmed and wild-harvested across the United States, Canada, the United Kingdom, Australia, and New Zealand, it represents a premier lean-to-moderate fat fish option. Raw farmed rainbow trout provides approximately 138 calories and 20.5 grams of high-quality complete protein per 100 grams, accompanied by substantial concentrations of marine omega-3 fatty acids, vitamin B12, vitamin D, and potassium.
Naturally free of carbohydrates and low in sodium, rainbow trout delivers a dense micronutrient profile with a milder flavor and slightly lower caloric footprint than farmed salmon. The nutritional metrics detailed on this page reflect raw, farmed rainbow trout meat, the most commonly purchased commercial variety. Differences associated with wild-caught specimens, cooking preparations, and steelheads are explored below.
Rainbow Trout Nutrition Facts per 100g
The table below outlines the nutritional breakdown for 100 grams of raw farmed rainbow trout, alongside common kitchen serving portions of 3 ounces (85 g) and 4 ounces (113 g).