Hill's Prescription Diet Canine k/d Kidney Care is specially formulated to support your dog's kidney health and is clinically proven to improve quality of life in dogs. Available in dry and wet (canned) formulas. Reduced phosphorus to help maintain healthy kidney function Reduced levels of protein to help reduce kidney workload Reduced sodium to help maintain normal blood pressure Increased levels of omega-3 fatty acids to help blood flow to the kidneys Increased levels of B-complex vitamins to compensate for vitamin losses in the urine Added antioxidants to control cell oxidation and promote a healthy immune system