I have a lovely tom cat that has to have a special urinary diet. I have just got a beautiful kitten and unfortunately she has been poorly (diarrhea), today I found out that kittens can not eat his special food (hills prescription diet).This is probably what made her ill. I can not find a cat food that will keep him healthy and that wont make our 14 week kitten poorly. From experience dry urinary food is the best treatment for him. Its impossible to keep them out of each others food but I love them both and want to do the best for them. Ideally if there is one type of dry food I can feed them both then problem solved. If anybody has any ideas please help me.