ORIJEN's Biologically Appropriate concept is simple: include the fresh, whole foods that nature intended cats and dogs to eat, and exclude ingredients like cereal grains that your dog or cat is not evolved to eat. High-protein, low-carbohydrate and Grain-FREE, ORIJEN diets feature farm-fresh ingredients in a Biologically Appropriate ratio of 80 percent meat, 20 percent fruit and vegetables, and zero grain (80.20). Made with a diversity of fresh (but never frozen) meats - including free-range chicken, turkey, wild boar, bison, lamb, fresh whole eggs and wild-caught regional fish; ORIJEN's grain-free recipes match the evolutionary diets of dogs and cats and promote their peak physical well-being.