How much chocolate can a dog eat?

Dog owners often ask how much chocolate can kill a dog. While there is no right or wrong answer to this, we know dogs show symptoms of poisoning when they eat 20mg of theobromine (the toxic chemical in chocolate) for every kilogram they weigh. These symptoms become severe at 40 to 50mg per kg.

Treatment is required for dogs who have eaten 3.5g of dark chocolate for every kilogram they weigh and 14g of milk chocolate for every kilogram they weigh. Our emergency vets have created a helpful calculator to allow owners to check if their dog has eaten a toxic amount.

Our infographic below provides an at-a-glance guide to just how little chocolate could be potentially toxic for different breeds.

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