I really struggle with Kylie - She was on Hill's light for about 3 years but gained weight on it. I have tried Hill's R/D (High Fibre) and Hill's M/D (Metabolism diet) with no luck. I tried RC obesity but she refused to eat completely. I now have her on Orijen, as although its high fat, it has virtually no carbs as it is cereal free - I also try to get her to eat wet as it's less fattening. It's hard to diet one cat in a multicat household. The vet told me to take her food away after 10 minutes but Willow is borderline underweight and grazes so I can't do that. Apparenty, Wet food in Jelly is better than gravy as less carbs.