Live Well Shark Cartilage Sticks are a single ingredient source of lean protein that are high in Omega-3. Live Well Pets shark cartilage is pure glucosamine and chondroitin known for its beneficial effect on dogs suffering with arthritis or joint and hip dysplasia. They are a great tasting treat that also benefits dental hygiene in dogs. The cartilage used in these treats are commercially obtained from licensed Australian fisheries. Sharks are not specifically harvested to produce this product, nor are they sourced from any endangered species.