STARCH FREE! The first extruded dry diet/kibble pet food (patent pending) that is Starch Free™ (Epigen™ does what ";Grain Free"; dog food and cat foods only pretend to do). Made in the USA at Wysong manufacturing facilities with ingredients from USDA and FDA approved domestic sources Wysong Epigen™ represents the first important kibble pet food innovation in almost 60 years (patent pending) and moves conventional dry extruded pet foods much closer to the high protein meat-based, starchless foods carnivores are genetically designed for. With that, they are given greater opportunity to enjoy their full natural health. Epigen™ is equally appropriate for both cats and dogs.