100% Grass-fed and Hormone Free. This is an all natural cartilaginous chew with natural glucosamine and chondroitin sulfate. Buffalo products are high in Protein and a great Natural Dog Treat. Leaner and lower in saturated fat than Beef and Pork, they are also a great source of Heart Protective Omega-3. Composition: 100% Buffalo Analysis: Protein: 60% fat: 19% Fibre:6.5% Ash: 1% Moisture: 8.5%