Keep your canine companion’s excretory system running smoothly. Zesty Paws Cranberry Supplement for Dogs Urinary and Bladder Supplement Chicken Flavored Chew Treats are made with cranberry, D-mannose, astragalus, marshmallow and nettle seed to promote your pup’s kidney, bladder, urinary tract, gut and immune system health. These delicious, functional, soft chews feature Cran-Max—a cranberry concentrate that helps promote urinary tract health—paw-fect for dogs of all ages, sizes and breeds.