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My cat won't eat urinary S/O after puking. Can I mix old food?

Updated On September 23rd, 2025

My cat has been on Royal Canin Urinary S/o for about two weeks now and last night he puked it up. I think I didn't clean it too well and it made his stomach upset. Now he doesn't want to touch it, I think he is scared to eat it. Can I mix his old Nutro food (it would be crushed and water would be added) to mix in with his current food to make him eat?

1 Answer

Most Helpful Answer

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Answered By Christie Long, DVM

Veterinarian, Certified Veterinary Acupuncturist

Published on November 30th, 2016

You can certainly try this, but if it doesn't entice him to eat I would start to wonder if he really has an upset stomach and he doesn't want to eat because he's truly nauseous. If he doesn't want to eat the mix of his old food and the new food tonight or in the morning I would consider scheduling a recheck for him to see if something else is wrong. Certainly the resolution of his urinary problems depends on his eating the s/o food, so he needs to get back on that as quickly as possible as well.

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