The Purina cat chow way of life. Formulated with Vitamin E for your cat's radiant health, including healthy skin and coat. Natural fiber blend helps control hairballs. Helps your adult cat maintain a healthy weight and lean muscle mass. Contains the wholesome grains and garden greens your indoor cat craves. Ideal for feeding everyday. Our nutritionists specially formulated Purina Cat Chow Indoor Formula to help your cat get the most out of the indoor lifestyle. Because indoor cats may groom more and can be prone to weight gain, Purina Cat Chow Indoor Formula has a natural fiber blend to help control hairballs and high quality protein to help your adult cat maintain a healthy weight and lean muscle mass. And, of course, it contains the wholesome grains and garden greens your indoor cat craves! From kittens to senior cats, indoor-only cats to multiple cat households, there are different lifestyles to consider when choosing a food. Physical. Emotional. Complete. That's the Purina Cat Chow Way of Life. Special Note: Changes in your pet's diet should be made gradually to allow your pet to become accustomed to a new food. Substitute small amounts of the new food for the old food, gradually increasing the amount of the new food while decreasing the old food, over a period of 7-10 days.