Our Pork Formula is a high protein dog food, as pork can have a protein content as high as 89%. As a source of complete proteins, pork is the healthiest dog food, providing a healthy amino acid profile. Pork is also rich in thiamine, making it the best dog food alternative to other dog food. To balance out the naturally rich vitamins and minerals in pork, we’ve made this formula grain free to provide a hypoallergenic dog food for your pup. The healthiest pet food is a limited ingredient dog food that’s extremely palatable and delicious. 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. AAFCO stands for Association of American Feed Control Officials. Zignature® recipes are formulated to meet all the nutritional levels established by the AAFCO Dog Food Nutrient Profiles. This certifies that Zignature® is a nutritionally complete product that can be fed to your pet as its sole ration without adding any other substance except water. 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.