These are a classic in the pet industry for good reason, they are not only low-fat and 100% digestible, but also tasty, crunchy and help support joint health. Cow Ears are a classic in the pet industry for good reason, they are not only low-fat and 100% digestible, but also tasty, crunchy and help support joint health. This treat is low in fat but rich in protein. Special for indoors. Odor-free.