Perfect Weight dry cat food provides delicious, breakthrough weight management nutrition with clinically proven technology for: At Hill’s, we have been studying how nutrition impacts pets’ cell function for over a decade. We learned that lean pets have a different biology than overweight pets. Our high protein, high fiber formula enriched with L-carnitine & coconut oil helps support pets’ metabolisms for a healthy body weight. Adult cats, including those that are less active, neutered or otherwise prone to weight gain Kittens and pregnant or nursing cats. During pregnancy or nursing, cats should be switched to Hill’s® Kitten or Kitten Indoor dry cat food. Hill's® Science Diet®  Perfect Weight dry cat food provides delicious, breakthrough weight management nutrition with clinically proven technology f