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My older cat won't eat after new kittens. Is he upset or sick?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 16 years and 9 months old | 8 lbs

I recently adopted two kittens, and now one of my older cats won't eat. Is he just upset about the new additions?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on January 4th, 2017

Yes, it is likely that Jack is upset about the addition of the new kittens. Introducing a new cat into the house is very stressful for an existing cat, especially old cats. I would try to tempt him to eat by offering him small amounts of boiled white meat chicken (no bones), or soaking his food in tuna juice or low sodium gently warmed chicken or beef broth. If he still won't eat with these methods, or it's close to three days since he last ate, I would take him into a vet right away. When a cat doesn't eat for three days or more, they become prone to a fatty liver, which is serious.

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