PureBites treats are made with only 1 ingredient; 100% Pure USDA Inspected Duck Liver in the USA. Dogs love the taste of PureBites because our treats are freeze-dried to lock in the aroma, texture, and freshness they crave. Dog owners love PureBites because our treats are 100% pure and rich in nutrients for a happy and healthy life. PureBites are 100% natural, pure, and easy to digest without any added preservatives. Each piece of PureBites duck liver has less than 12 calories per treat and is high in protein.