You can also feed your cat a commercial cat food designed specifically for cats with kidney disease with a preference for moist canned foods (vs. dry foods). (cat-health-guide.org)
But providing dogs and cats with kidney disease with no more protein than they require to remain healthy seems like quite a good idea. (2ndchance.info)
There is, however, strong evidence that restriction of phosphorus benefits cats with kidney disease. (consciouscat.net)