Hill's Prescription Diet k/d Kidney Care Beef & Vegetable Stew Canned Dog Food 24/5.5 oz The Hill's Prescription Diet k/d Kidney Care Beef & Vegetable Stew Canned Dog Food is clinically proven nutrition that can help transform your pets life. As pets age, damage to the kidney tissues may occur, which affects the kidneys role to function properly and filter toxins and waste from the blood. It is irreversible, and will lead to further loss of kidney function.