All dogs are descended from the gray wolf, possessing the same eating anatomy as their ancient cousins. This means they are meant to eat a diet that is rich and varied in fresh, whole animal ingredients. ACANA Light & Fit contains carefully balanced calories from protein and fat to help support a healthy body weight and lean muscle mass. Loaded with free-run chicken and turkey, wild-caught fish, and cage-free eggs, ACANA nourishes dogs naturally, the way nature would.