Zignature's Pork Formula is a great source of muscle building protein & amino acids. Pork is rich in minerals, such as thiamine, which is vital in cell function & helps the body convert food into energy. This recipe is completely grain free, for dogs with food sensitivities or allergies, and contains low glycemic carbohydrates to keep your dogs healthy, strong & energetic. And the taste is unbelievable. It is easily one of their most popular recipes. Your dogs will love it and benefit from the excellent nutritional content. Zignature Pork Formula - Learned from Nature, Crafted to Perfection.