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My dog ate a fried onion ring. Should I be worried about his health?

Updated on September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | neutered | 10 years and 9 months old | 15 lbs

My dog ate one deep-fried onion ring from Burger King. Should I be worried?

3 Answers

Most Helpful Answer

Answered By Jenny, DVM

Veterinarian

Published on November 10th, 2017

While onions can be bad for dogs that is not likely enough to cause any toxicity problems. However I would be worried about it being fried and causing an upset stomach and pancreatitis. This can be painful and start with a decreased appetite, vomiting, diarrhea and lethargy. If you notice any of these symptoms, take him to the vet for testing and treatments.

8Pet Parents found this answer helpful

Related Answers from Veterinarians

Answered By Dr. Melanie, BVSc MS
Veterinarian
Published on April 6th, 2019
Oh that's not good. If Bear only ate one, there shouldn't be a risk of onion toxicity, but the fried part is concerning. Too much fat causes pancreatitis. Monitor him for abdominal pain, vomiting, lethargy, and anorexia. If you see any of those signs, have him seen by a vet. Best of luck.
1Pet Parents found this answer helpful
Answered By Kevin Sanada, DVM
Veterinarian
Published on August 8th, 2017
If it was just a small amount of beef and just two onions, then there is little need for concern. The only concern with eating the beef would be that it might upset the stomach and in rare cases cause inflammation of the pancreas (this usually happens in cases where they eat a lot). However, the vast majority of dogs will handle it just fine.

Onion is known to be toxic (causes damage to red blood cells) to dogs, but she would have to eat much more than two rings for it to be a problem.

Overall, I think you have nothing to worry about, but I'll give you just a couple of things to look for as signs there is a problem:

1) Macey is acting more tired than normal.
2) Macey vomits more than three times or is vomiting for more than 24 hours.

If you see this or anything else concerning, then it would be worthwhile to take Macey to the vet.
1Pet Parents found this answer helpful

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