Our chicken bones come from free-roaming farm-raised chickens, that are always antibiotic and steroid-free. We care about the way our ingredients are sourced and handled from start to finish. Calorie Content: 160 ME kcal/kg - 4.57 kcal/oz ME. Guaranteed Analysis: Crude Protein (Min) 3.09% , Crude Fat (Min) 0.28%, Crude Fiber (Max) <0.2%, Crude Moisture (Max) 95.16%, Crude Ash (Max) 0.73%. ***Our products are bottled in amber glass bottles for shelf life and product quality guarantee!