NutriSource® Super Performance Chicken and Rice Formula provides super premium nutrition in a scientifically formulated easy to digest food. Incorporating the latest scientific advances for canine athletes NutriSource®Super Performance combines chicken rice and carefully selected ingredients in the precise blend for highly active athletic dogs. NutriSource® gives athletic dogs the edge they need to achieve and maintain top performance even through the most adverse conditions. Readily available nutrients in chicken and rice go to work on the inside resulting in less waste. 40 lb. bag.