On Apr 9, 11:53 am, wrote:
I have a cat that recently had surgery to remove crytsals from her
bladder and the vet has put her on Hills Percription Diet S/D. I'm
wondering if anyone knows if it's ok to feed my other cat the same
food. They are both females and the same age (sisters). It has been
a complete pain to seperate them at feeding time and the other cat
ends up eating the Hills anyway.

p.s. I asked this question to my vet but she hasn't gotten back to me
yet.

Thanks for the help,

Kate

These prescription diets are formulated to create a certain urinary
PH. So if a cat that has an already normal PH is fed a prescription
diet, it may cause the urinary PH to be either to acidic or to
alkaline, thus causing crystals. I'd be very careful to not feed the
cat without the problem any of the prescription food.