Northstar Bison raw pet food is a mixture of 90% lean ground bison meat, blended with bison liver(5%), heart(5%), kidneys(5%), spleen(5%) and bison bone dust(2%) for a complete meal for your pet. They will be at your feet the minute you open the refrigerator for it. Raw, frozen. Available in 3 sizes:1 lb, 1 lb of 4 oz. patties5 lb bulk bagNon allergen, gluten free, preservative free