What diet for my picky cat with elevated creatinine and BUN levels?
Updated On September 23rd, 2025
Pet's info: Cat | Mixed Breed | Female | spayed | 12 years and 9 months old
Hi, My cat just had a blood test and her creatinine and bun levels are a little elevated. She is super picky about food. What would you recommend?
2 Answers
Most Helpful Answer
Published on November 8th, 2016
I'm sorry that Twitchy's creatinine and BUN levels are slightly elevated. As I'm sure the vet explained to you, these elevations are typically signs of kidney disease, which is very common in old cats. With kidney disease, it's very important the cat has as much fluid intake as possible, so I would be feeding her a wet food instead of a dry food. That will give her additional water that she needs. It's also recommended to feed her a low protein and low phosphorous food, as both should be restricted to support kidney function. I'd recommend feeding her a kidney formulated wet food, such as Royal Canin veterinary diet renal or Hills Science diet k/d. Cats do tend to enjoy wet food, so feeding her this canned food will hopefully appeal to her taste buds, and feeding a kidney diet will be the best to support her kidney function.
2Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on December 15th, 2016
Hands down the prescription formula (ie. Hill's K/D, Royal canin renal) is best because it is lower in sodium an has other additives to encourage kidney health. It is available in both dry and wet canned version, however the canned food is better because it adds more water to Twix's diet, which is best for keeping the kidney's diuresed (flushed with fluids).
1Pet Parents found this answer helpful
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