Petco Text Logo
Petco Pet Logo

My dog ate a chocolate brownie. What are signs of chocolate poisoning?

Updated On September 23rd, 2025

Pet's info: Dog | Cavalier King Charles Spaniel | Male | neutered | 30 lbs

My 30 lb Cavalier King Charles Spaniel just ate a bite of a Think! Brownie Crunch bar. Already called my vet. What are signs to look for?

1 Answer

Most Helpful Answer

Image profile

Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on August 20th, 2020

Hi there. A single bite of a chocolate brownie bar should not contain enough actual cocoa to cause any significant problems, so I doubt you'll see any problems at all. :) You may see some mild GI upset (vomiting or diarrhea), especially if your pup isn't used to human food, but otherwise no major issues would be expected. With more serious chocolate toxicity cases (which normally require a lot more chocolate to be ingested), we can see symptoms like restlessness and panting, an unusually fast heart rate, and even seizures or other neurologic issues. So you can certainly watch for any issues, but again, I wouldn't expect to see this from the scenario you're describing here. But if you have any concerns, it's never wrong to take your dog to an emergency clinic to be checked out and make sure everything is okay.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored