For A Limited Time Only: Buy 2 get 1 Free on Hills Prescription Diet Feline W/D 1.5kg bags. Add 3 to basket, & only pay for 2. Offer ends 31st December 2011 Hills Prescription Diet Feline W/D for the Nutritional Management of Obese Prone & Slightly Overweight Cats. Even minor weight problems can have an impact on your cats health & energy levels. Its a problem that frequently begins with excessive calorie & fat intake as well as a lack of adequate exercise. Hills Prescription Die