Transitioning from Kitten Food to Adult Food
As a general rule, cats that are less than one year of age are considered kittens. It is important to feed your pet a kitten formula up to one year. The exception would be larger breed cats, such as the Maine Coon, which do not reach adult maturity until they are 18 months to two years of age.
Introducing Adult Food
Kittens grow and develop every day. They require a food that meets the high-energy demands of their bodies. As your kitten becomes an adult cat, you may need to adjust her diet.
You should begin slowly transitioning your kitten to adult food when she is one year old, or when your veterinarian recommends doing so. Spread out the transition process over a 7 to 10 day period, gradually increasing the amount of her new food each day.