Contains theobromine and caffeine, which dogs can't clear quickly. Darker and baking chocolate are the most dangerous. The details below use the specific facts for this exposure, rather than treating it like every other food question.
1. Start with the exact exposure
For a closely related comparison, read Caffeine. Scales with type and weight. Baking and dark chocolate are worst: for a small dog, even an ounce of dark chocolate can cause signs. Milk chocolate is less potent but still risky in quantity.
2. Use the facts to decide whether to monitor or call
Another helpful reference is Chocolate Almond Spread. A single lick of milk chocolate from a large dog is usually low-risk. Watch for upset. Dark or baking chocolate, any real amount, or a small dog: don't wait.
3. If the details are uncertain
Follow the first 10 minutes guide. Note the type, amount, and your dog's weight, then contact your vet. Don't induce vomiting unless told to.
FAQ
How much Chocolate is dangerous?
Scales with type and weight. Baking and dark chocolate are worst: for a small dog, even an ounce of dark chocolate can cause signs. Milk chocolate is less potent but still risky in quantity.
Can I treat this at home?
A single lick of milk chocolate from a large dog is usually low-risk. Watch for upset.
When should I call the vet?
Dark or baking chocolate, any real amount, or a small dog: don't wait.
Compiled from veterinary poison-control and medical reference sources, including the ASPCA Animal Poison Control Center, the Pet Poison Helpline, and the Merck Veterinary Manual. This is general educational information, not a diagnosis or a substitute for examination by your veterinarian. DogSafe's severity ratings are our own assessment, calculated from published guidance and your dog's weight. In an emergency, call ASPCA Animal Poison Control at 888-426-4435 or the Pet Poison Helpline at 855-764-7661.