I have a gorgeous rescue who I've had a couple of months now. She has been checked by the vet but she's struggling with digestion. Her tummy gets very easily upset but at the same time she's rapidly putting on weight and I'm concerned she could get quite porky. Can anyone recommend a bland, low cal food which will fill her up but not make her put on weight or overload her delicate tum. She's 4, was neutered a few months ago and very food orientated. She's very cuddly and not that active - scared to go outside on her own :(. At the moment she's on Digestive Care biscuits and wet food.