My cats are on regular diet. I work at a nursing home and a resident has a cat who has to be on a renal diet. There are many complaints about the poor baby (young persian, owner went to hospital and neighbor who was supposed to take care of it took it to a shelter and not sure why, but now on renal diet) ANYHOW, many complaints and she may have to find home for him. I would love to bring him home but not sure about feeding the seperate diets. Any suggestions? The sad thing is that the complaints are that he is peeing on patients' beds but his litter box is in his owners bathroom and they keep shutting the door.