NutriSource® Large Breed Trout & Rice Formula Dog Food provides super premium nutrition in a scientifically formulated easy-to-digest food. Real trout is the number one ingredient in NutriSource® Large Breed Trout & Rice Formula Dog Food. Trout is a source of high quality protein to help maintain muscle mass and strength. Trout has a rich, wholesome taste dogs love. NutriSource® combines trout, rice, and carefully selected ingredients in the precise blend to balance all essential nutrients necessary for optimum health, well being and long life. The readily available nutrients in trout and rice result in less waste.