If your dog has eaten something toxic, contact your veterinarian or an emergency animal hospital right away. Do not wait for symptoms. In the US you can also call the ASPCA Animal Poison Control Center at (888) 426-4435 or the Pet Poison Helpline at (855) 764-7661 (fees may apply).
Why
Chocolate contains theobromine and caffeine, two stimulants from a group called methylxanthines. Dogs break these down much more slowly than people do, so they build up in the body and overstimulate the heart and nervous system.
The risk depends on the type of chocolate and your dog's size. Baking chocolate, cocoa powder and dark chocolate contain the most theobromine; milk chocolate contains less; white chocolate contains very little but is still high in fat and sugar. A small amount of dark chocolate can be serious for a small dog.
Symptoms to watch for
- Vomiting and diarrhea
- Restlessness, hyperactivity or panting
- Excessive thirst and urination
- Racing or irregular heartbeat
- Muscle tremors and, in severe cases, seizures
- Signs usually appear within 6 to 12 hours and can last for days
What to do if your dog eats it
- Note the type of chocolate, how much is missing and when it was eaten. Keep the wrapper.
- Call your veterinarian or an animal poison control service right away, even if your dog seems fine.
- Do not try to make your dog vomit unless a veterinarian tells you to.
- Store chocolate, cocoa and baked goods out of reach, especially around holidays.
Related foods
Sources
- ASPCA Animal Poison Control Center. People Foods to Avoid Feeding Your Pets.
- Merck Veterinary Manual. Toxicology section.
- American Kennel Club (AKC). “Can Dogs Eat…?” article series.