My cat loves this food. She is 8 years old and has had very minimum hair balls and is healthy as can be. I would recommend Science Diet food to any and all animals. I think it is simply the best out there. I started her out on the kitten formula and have moved her up throughout the span of her life. She's rarely sick and always spunky. With bad quality food, litter boxes are a different world than with Science Diet. You can tell a lot of a cat's healthy by the litter box. Litter box clean-up has never been an issue with using this Science Diet food. Quality of Ingredients The Ingredients are those that are helpful to the cat's health. Hairball control was a big issue many cats deal with, especially as they age. The food is formulated to provide healthy body's in your cat and provides indoor cats the muscle they need to be indoors all day. Flavor Selection I've never had an option of flavors, I go strictly off the type of food for my cat's age and activity level. She's never had issues with not eating or acting like she didn't like it.