The trout is a freshwater fish of the salmon family. The rainbow trout got its name because of the presence of a bright scarlet stripe on the silver body. The meat of rainbow trout contains a lot of highly digestible protein and is low in calories, contains Omega-3 fatty acids, essential fat-soluble vitamins A, D, E, water-soluble B vitamins, as well as the following trace elements: potassium, selenium, zinc, magnesium, iron, sodium and phosphorus