Hill's Science Diet Adult Healthy Mobility SM Bites Chicken Meal, Brown Rice & Barley Recipe Dry Dog FoodLittle and small breed dogs need their own support to prevent joint and mobility issues, which is why Hill's Science Diet Healthy Mobility Small Bites dry dog food contains advanced nutrition. Using natural sources of glucosamine and chondroitin the building blocks of healthy cartilage this small kibble supports the joints, while a balanced set of minerals promote strong bones. High quality protein and natural fibers keep your tiny dog satisfied