I feel overwhelmed with all the advice about raw food. I order my ground chicken bones in organs from a place called Hare Today. It’s very reliable. But only one cat will eat that food the rest will only eat canned Fancy Feast. Is there anything I can make maybe cooked that they will like that’s good for my two kidney guys? I also would like some supplement such as kidney support. I don’t know why my vet doesn’t suggest this instead of just waiting and watching the kidney disease progress