Purizon is a high quality dry food tailored to meet the nutritional needs of carnivorous cats. The special recipe for sterilised cats contains lamb and fish, which provide easily digestible protein to help maintain lean muscle mass, as well as offering a delicious, nutritious meal. Your cat's teeth, jaws and short digestive tract are all optimally suited to processing protein from meat and fish. As well as vitamins and minerals, these proteins also provide your cat with essential amino acids. Fruit and vegetables have been included as additional sources of fibre and vitamins. Our recipes have been carefully revised by veterinarians and nutritionists to reflect the latest scientific findings for consistently high quality, optimal nutrition and the familiar taste your pet knows and loves. Please refer to the ingredients section for detailed information on each recipe change. Due to a packaging change, you may now receive this product in a different format the zipper has been removed and the design of the packaging has been updated.