Originally Posted by robwod

Jay, given the cat's age and your familiarity with renal/kidney issues, you will want to make sure that any new food you introduce does not overdo it with the protein, as that can have a real negative impact on her kidneys. Hydration is also important so it's a good thing she is drinking a lot.

We had an 18year old Siamese cat and, although he drank a lot, his kidneys were in decline and we ended up having to get him regular fluid shots. These helped him tremendously for several months. In the end, his kidneys just gave out -- there was just no stopping the inevitable.

Good luck.