I have one cat that also overeats, yes shes also overweight, but 3-4 times a wk. she will throw up. I have taken her to the vet, feed only the 'Premium' food..PLEASE stay away from many of the store brand foods, not only are they full of '[censored]' especially many 'dies' as someome mentioned. Even though you 'think' the premium food cost more,your cat eats less & gets more of the vitiamins, also your cat bow will 'smell nicer' & you won't be changing it that much. Your PET will be getting more of what it needs, so they eat less, so less waste, I had a Springer who made 'poddle poops'. I'v had cats all my life, been in Animal rescue over 30 yrs, now have my own own non-profit Rescue. So read what is in the food you feed your pet, if the first ing. is corn,look for one that has Lamb, chicken or anything but corn as their first ing., animals like us don't digest it well, so all we have is 'more' to pick up, or our boxes need changing more. Lets keep out 'furry friends' healthy. Hugs, Pegi