Feeding Your Adult Cat: What You Need to Know. Get expert tips for keeping your cat healthy, happy, and well fed. Written by Annie Stuart. Medically Reviewed by Audrey Cook, BVM&S on April 20, 2012.

It won’t harm the adult cat to eat kitten food, other than consuming the extra calories, but the kitten definitely shouldn’t be eating food formulated for adult cats. It would be best to feed ...