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Janet Tobiassen Crosby, DVM

Chocolate Toxicity: Interactive Chocolate Chart

By February 22, 2009

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Chocolate chunks  Getty Images / Mark WeissThis morning a friend of mine asked if chocolate really is toxic to dogs, or if it was just an "old wives' tale." It's true; chocolate, raisins and grapes, and the artificial sweetener xylitol are all examples of common foods that are toxic (potentially fatal) to dogs.

How toxic is chocolate? It depends on the dog and the chocolate. White chocolate is least toxic, Baker's (unsweetened) chocolate is considerably more toxic. Small dogs don't have to eat very much to see the earliest effects of vomiting and diarrhea.

I wanted to share a handy interactive chocolate chart that I found at National Geographic. This will help viewers visually understand "how much is too much" relating to the size of dog and type of chocolate.

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Photo credit: Chocolate chunks Getty Images / Mark Weiss


April 3, 2011 at 3:26 pm
(1) David Shirley says:

Somehow the chart on toxicity of chocolate to Dogs should be more publicsized, and charts should be posted on all vets examining room walls as a way to educate dog owners, as still there is a lot of ignorance about this issue. I am currently trying to convince my daughter to believe in this fact as she believes that this is an old wives tale. I am hoping to educate her before she kills one of her 5 dogs that she owns. I forwarded the chart of toxiscity to her hoping this will convince her. THANKS FOR THIS INFORMATION.

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