Dark chocolate contains the highest concentration of theobromine of all chocolate varieties, making it the most dangerous type for dogs. Even small amounts can trigger serious toxicity symptoms including hyperactivity, vomiting, diarrhea, rapid heart rate, and seizures. A piece as small as 25-30g can be lethal for small dogs. Never assume your dog will be fine because they ate a small amount. Contact a vet immediately if consumption occurs. Theobromine metabolizes slowly in dogs, prolonging toxicity risk. Keep all dark chocolate completely out of reach, including baking chocolate and cocoa powder. Milk and white chocolate are less dangerous but still require urgent vet attention if eaten.
Why Dark Chocolate Should Be Avoided
Highest theobromine concentration of all chocolate types; even a small amount can be life-threatening.
What To Do If Your Dog Eats Dark Chocolate
Monitor your dog for vomiting, diarrhoea, lethargy, or loss of appetite. If symptoms develop, contact your vet.
Use the Emergency Risk ToolCommon Mistakes
Watch out: Owner assumes small amount is harmless, or delays contacting vet believing symptoms will pass naturally. Some owners mistake dark cocoa powder residue for safe amounts. Others don't realise homemade bakes contain dark chocolate until after feeding.
Frequently Asked Questions
Is a lick of dark chocolate dangerous?
Yes. Even one lick can be toxic to small dogs. Any amount requires immediate vet attention.
How long until symptoms appear?
Symptoms can appear within 30 minutes to 12 hours depending on the amount and dog size.
What should I do if my dog ate dark chocolate?
Contact your vet immediately with the amount and type. Do not wait for symptoms.
Is dark chocolate more toxic than milk chocolate?
Yes. Dark chocolate has 5-10 times more theobromine than milk chocolate.
Can I induce vomiting at home?
No. Contact your vet first. Vomiting is safe only if done within 2 hours of eating.