Chicken Bone Broth fine powder combined with Beef Liver flavours that canines and felines love! Healthy mix that makes pets love and eat their food or kibble. Good for over 1 year; store in cool place; Bag typically lasts 2-3 months depending on use and size of dor Add to food, offer as a treat, mix with water for gravy or use in homemade biscuits In general, beef is higher in important minerals like Iron, calcium and zinc than chicken livers. But chicken livers have more vitamins A and D and some B vitamins.