Hill's® Prescription Diet® k/d® Kidney Care Feline Dry FoodHill's Prescription Diet k d Kidney Care Feline Dry Food This Prescription Diet is sold under veterinary supervision. Please check with your veterinarian if this diet is suitable for your pet before purchase When cats have damage to kidney tissues, the kidneys cannot perform as well as before, like filtering and reabsorbing nutrients. The condition is not reversible, but progression may be slowed. Therapeutic foods for kidney conditions are designed