Hill’s Prescription Diet k/d Feline – Kidney is a specialized product for adult cats which are suffering from kidney disorder. It is a properly formulated product that has controlled phosphorus and low sodium to support kidney & heart functions.?Hill’s Prescription Diet k/d Feline – Kidney – Adult Cat Food has high level of omega-3 fatty acids from fish oil to help the blood flow to the kidneys and also provides healthy skin and fur. It has antioxidants that supports your kidney as well as amino acids that supports lean muscles. It has?Enhanced Appetite Trigger (E.A.T.)? Technology that stimulates the appetite of cats with renal conditions, for up to 35% greater caloric intake than other renal foods.