Hill's Science Diet Adult Perfect Weight Large Breed + Joint Support Dry Dog FoodThis weight management and mobility support dog food was created with Hills unique understanding of the biology of overweight large breed dogs. This weight management and mobility support dog food in a larger kibble for large breed dogs was created with Hills unique understanding of the biology of overweight dogs. It provides lean muscle support, and also uses clinically proven antioxidants for a healthy immune system. Over 70% of dogs lost weight