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Why is my cat throwing up after eating dog food? Is it harmful?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Female | unspayed

If my cat is eating dog food would it make her throw it up after eating??

2 Answers

Most Helpful Answer

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Answered By Dr. Macartney, BVet Med, MRCVS

Veterinarian

Published on November 6th, 2017

It is possible the dog food is causing gastrointestinal upset. Dog food is formulated for the nutritional needs of a dog which is an omnivore, cats are obligate carnivores are require a meat based, cat formulated diet. I would advise the following: Switch to a cat food Try boiled boneless skinless chicken breast while her stomach is upset https://www.petcoach.co/article/6-human-medications-that-are-sometimes-safe-for-sick-pets/ If the vomiting does not stop after a few days I would advise taking Cleo to a vet to make sure nothing else is wrongness.

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on January 6th, 2018

    Hi there! Thanks for using Petco Pet Education Center, formerly Petcoach! Vomiting is sometimes seen with conditions such as inflammatory bowel disease, dietary indiscretion, pancreatitis and chronic kidney disease, among many other conditions. Given Victor's young age and the fact that he is otherwise doing fine and that he is being fed an adult diet, dietary indiscretion appears more likely. It may be something as easy as just changing his diet to something that he can tolerate better such as a kitten diet. You could consider something like Purina Pro Plan or Purina One which are both relatively inexpensive and of good quality. However, an examination by a veterinarian as well as minimal diagnostic data would be needed to rule out more concerning things. You can start by changing his diet to a kitten diet. If no improvement, have him examined by a veterinarian to start therapy if needed based on findings. Good luck!

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