Zignature's 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, Zignature has 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. | Zignature Grain-Free Limited Ingredient Pork Formula Dry Dog Food | Size 27 lbs