Zignature Whitefish Formula for dogs is a meat first, limited ingredient recipe that is naturally high in protein and Omega-3 fatty acids. Zignature Whitefish Formula is made with whitefish from the cold, clear waters of the Pacific Northwest and Alaska. It's also loaded with healthy Omega-3 fatty acids and essential vitamins & minerals like niacin, phosphorous, and selenium to keep your pup healthy and happy.