Most cats hate renal diets. With Miss Kitty, I tried Hill's k/d first. She hated it. Now we are on Purina's n/f. She hates that, too.
Royal Canin has a renal support food we have not tried yet.
I don't know if it's the reduced protein or the reduced phosphorus that makes it horrible tasting.
A school of thought is that the none of the diets will work if the cat doesn't eat it, therefore it's better to give them what they like before they starve, which will create a whole other host of problems.
But then again, studies show that cats with renal disease will live longer on a renal diet.
I found the following site with a whole list of foods available, and some other good advice.


http://felinecrf.org/which_foods.htm