Go ahead, turn the bag around and look at the ingredients. PureBites are made with only 1 ingredient; 100% Pure USA Sourced & Made Human-Grade Duck Liver. Dogs love the taste of PureBites because our treats are freeze dried RAW to lock in the aroma, texture, and freshness they crave. Dog parents love PureBites because our treats are 100% pure and rich in nutrients for a happy and healthy life.