Our Whitefish Formula dog food, made from whitefish in the Pacific waters of Oregon, Washington, and Alaska, is a good start to try elimination diets for your pup. Whitefish is rich in Omega-3 fatty acids, Vitamins B6 and B12, Niacin, Phosphorous, Selenium, and is low in sodium, making whitefish the best dog food. The healthiest pet food is a grain free dog food, meaning our Whitefish Formula is a hypoallergenic dog food, keeping any pet food allergy at bay. Mixed with fruits and vegetables to provide powerful antioxidants, our Whitefish Formula is the healthiest dog food. Physiologically Tuned™, limited ingredient premium food for dogs. Hypoallergenic meat first recipe, with no Corn, Wheat, Soy, Dairy, or Chicken, Chicken Eggs, or Chicken By-Products. We use a limited ingredient formula because in most cases simple is best. Zignature® is formulated to serve your canine companion’s needs by delivering the highest quality, well balanced diets. Our limited ingredient formula uses No Potatoes, No Grain, No Chicken, No Eggs, No Glutens, No Tapioca, No Corn, & No Soy. Our Single Animal Protein Formulas are extremely palatable, encouraging a healthy appetite and providing high-quality protein for strong muscles.