ZiwiPeak Lamb Air Dried Cat Food is based of a prey diet. This allows them to boast a formula full of lamb meat, organs, and bone. This follows the whole prey diet that carnivorous cats have eaten for centuries. The next portion of the diet is made up of New Zealand green-lipped mussels, a great natural source of glucosamine and chondroitin. To complete the remaining 2% of the recipe, hand selected essential vitamins and minerals, natural kelp, parsley, chicory inulin and lecithin are introduced for a fully balanced and complete diet.