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Chocolate Toxicity

With the holidays around the corner and we thought it was important to remind pet owners of the danger of chocolate consumption in dogs. Most dog owners are aware that chocolate is toxic to dogs but may not be aware that not all chocolate is created equally.

Everyone who has ever eaten chocolate knows there are many types: milk, dark, white, unsweetened, cocoa powder etc. It turns out each type has a different potential for toxicity.

Chocolate is toxic for dogs because it contains a substance called theobromine. The more chocolate liquor there is in a product, the more theobromine there is. The order of potential risk/toxicity to dogs is as follows:

  1. Unsweetened (baking) chocolate
  2. Dark chocolate (also known as semisweet chocolate)
  3. Milk chocolate
  4. White chocolate (has virtually no theobromine, the main concern is fat content)

Consumption of chocolate can cause a wide range of symptoms which can include one or more of the following:

  • Vomiting
  • Diarrhea
  • Abdominal pain
  • Hyperactivity
  • Tremors
  • Seizures
  • Racing heart rhythm progressing to abnormal rhythms
  • Death

It can take several days for the effects of chocolate to work its way out of a dog’s system. If the chocolate was only just eaten, it is possible to induce vomiting; otherwise, hospitalization and support are needed.

If your dog has consumed chocolate, it is recommended that you call into your local veterinarian to receive further instructions. When calling, if possible, have the following information ready:

  • The pet’s weight
  • The type of chocolate consumed
  • The amount of chocolate consumed

Written by: Sarah Bowyer, DMV



Rescue Dogs: Overcoming Unwanted Behaviours

Since the COVID pandemic has arrived in Canada (and around the world), we have seen a spike in pet adoptions. This is an amazing thing – for the new pet owner and for the pet.  However, one of the other spikes we see on an almost daily basis at the hospital is the need for new owner to attach “a story” to their pet's behaviours – particularly in the instance of “rescue” dogs.  In rescue situations, many of the dogs arrive with unknown histories and many of the dogs demonstrate specific or generalized fear and anxiety.

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Last updated: June 16, 2021

Dear Clients,

With recent changes to restrictions on businesses, we have made some important updates to our operating policies.


This includes vaccines, wellness exams, blood work, heartworm testing, spays and neuters, dental services, and more!


We are excited to allow clients in again, however please be patient as we must continue to disinfect all surfaces between appointments. As we work to care for our beloved patients, please be kind. Any abuse towards our staff will not be tolerated and will result in denial of service.


We are OPEN with the following hours:
Monday, Tuesday and Thursday: 8 am - 6 pm
Wednesday: 8 am - 7 pm
Friday: 8 am - 4 pm
Saturday & Sunday: Closed



Have you welcomed a new furry family member to your home? Visit our Must Know New Pet Owner Information page for useful resources and helpful recommendations for new pet owners.

Thank you for your patience and understanding and we look forward to seeing you and your furry family members again!

- Your dedicated team at Cambrian Animal Hospital