a/d Canine/Feline Hills is a prescription diet for dogs and cats with poor health conditions. a/d Hills may be fed to cats and dogs that are recovering from serious illnesses and surgery.
k/d Feline Hills is a prescription diet for cats with renal problems.
m/d Feline Hills is a prescription diet for cats, and is used for the regulation of glucose supplies within the body.
r/d Feline Hills is a prescription diet for cats that are overweight or obese.
u/d Canine Hills is a prescription diet for dogs with advanced kidney disease.
z/d Canine Hills is a prescription diet for dogs with food allergies, and food allergy intolerance.
