Hill's Prescription Diet Feline k / d Kidney Care Main benefits Clinically proven nutrition that can transform your pet's life. Hill's (TM) Prescription Diet (TM) Feline k / d (TM) helps prolong life and dramatically improves the quality of life of cats with kidney disease by reducing disease progression and the level of symptoms. Controlled levels of high quality protein to prevent toxic catabolites from causing disorders. With high levels of omega-3 fatty acids from fish oil to help renal blood flow. Helps to maintain renal function as it contains high levels of antioxidants. It has an excellent palatability and facilitates mixed feeding by mixing both dry and moist for a great satisfaction of the cat.