My cats don't seem to have a problem with over eating or drinking to much. I usually have four kinds of dry food at all times and Flower gets her wet food around 2:30 or so everyday. They all eat a good amout of food but not over eating. If I saw a problem like that , it's time to go to the vet to find out what's going on. Now with my Bambi, he drinks a good amout of water. He's been doing it since he's been a kitten. I thought at first why is he drinking so much, the vet said the more water the better it is. Now if he quits drinking water he is sick or something is wrong. Anyway write back Tracey