As long as you're making sure the your cat is getting enough dry food, it shouldn't be starving. I free feed most of my cats, rarely have I had a problem with a cat over eating. Generally, a healthy well cared for cat won't over eat. There are always exceptions to that rule though! I've found out through my rescue work that cats that have been deprived of food often over eat-I guess they're afraid that they might not always have food available.