We"re for big dogs. Size large and extra large. Dogs with long limbs, huge paws, big hearts and an appetite to match. Large breed dogs, with their powerful muscles and mighty weight, need special nutritional care. That"s why our Large Breed nutrition recipe is specially formulated with powerful ingredients to help promote strong bones, healthy joints, and provide optimal nutrition in a complete and balanced meal. The sheer size and weight of a large dog places special stress on his joints. That"s where glucosamine comes in. It helps maintain healthy cartilage and keep joints lubricated. Sort of like having an inner oil can. Omega Fatty Acids and oils are the stuff that help make your dog"s long hair silky, his short hair shiny, his skin healthy and his belly so soft it begs to be rubbed.