Formulated by dog-loving animal and food science experts, Natural Balance On the Move Chicken & Barley Formula dry dog food delivers bone and joint support for dogs in multiple forms. L-carnitine helps support lean muscle mass and a healthy weight, which helps prevent unnecessary stress on joints. Real chicken cartilage provides a natural source of glucosamine and chondroitin, plus high-quality protein that helps support the structural integrity of joints. And the optimal levels of calcium, phosphorous, copper and manganese help provide support for healthy bones and joints. So, while your dog may just think it's a tasty meal, he or she will be getting a complete and balanced diet with specialized benefits in every bite.