Our Turkey Formula is an all-American classic. A lean protein source that’s also low in fat and high in vitamins and minerals. Turkey is rich in Riboflavin, which helps the body absorb nutrients in food, and Selenium, which is a powerful antioxidant. Our recipe is completely grain-free so it’s perfect for dogs with food sensitivities. Our Turkey Formula is a great alternative to chicken. It also has a great taste that your dogs will love. Zignature® Turkey Formula – Learned from Nature, Crafted to Perfection. 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.