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My cat ate tuna with onion. Does she need an emergency vet visit?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Female | spayed | 9 years and 3 months old | 9 lbs

Hi! My kitty just got into some tuna that had onion in it . I'm not sure how much she ate and whether or not she actually ate any pieces of onion . Should I take her to the vet tomorrow ? What would they do ? Should I take her to the the ER? Thank you

1 Answer

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on April 16th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! It is hard to guide you since you do not know if or how much onion there was in the tuna. I can tell you that most of the time the pets are fine. If she is acting fine then I wouldn't rush to the ER. Onion toxicity isn't immediate and it usually is when they eat a lot of there is chronic exposure. I think you can wait for your Vet to open and if you are still nervous have her examined and some blood work done. Have a great day!

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