No artificial flavors. New! Long lasting treats. Loved since 1908. Easy on the digestive system. Rocks & wobbles!! Simulating & paw-able fun!! Made with USA raised chicken. No meat by-product meal. milkbone.com. Visit us at milkbone.com. If you have any questions about Milk-Bone Wonder Bones call 1-888-Milkbone (645-5266), weekdays. Please include product manufacturing code in consumer correspondence. Produced in Topeka, Kansas, USA. Calorie Content (Calculated): Metabolize Energy (ME) 2895 kcal/kg; 290 kcal/treat.