It is false that a cat in renal failure needs a low protein diet. It's not the quantity, but quality of protein. Unfortunately, cats in renal failure are not good eaters so switching a cat from a commercial dry food diet to a raw diet can be difficult. I suggest, first, going to a high quality canned like Wellness or Wysong all-meat canned, or Nature's Variety, then, if possible, going to raw.

Michelle T. Bernard
BLAKKATZ Naturally Raised American Shorthairs
http://www.blakkatz.com
Author of Raising Cats Naturally
http://www.raisingcatsnaturally.com