CAN DOGS EAT DARK CHOCOLATE?
Dark chocolate contains 8–16x more theobromine per ounce than milk chocolate, making even small quantities dangerous — one ounce can exceed the toxic threshold for a 10-lb dog.
Can Dogs Eat Dark Chocolate?
Why?
Dark chocolate's higher cacao content means dramatically higher theobromine concentrations. 70% dark chocolate typically contains 150–200mg of theobromine per ounce. This is the type most likely to cause serious cardiac and neurological effects.
Baking chocolate is even more concentrated at 400–450mg per ounce and is a particular hazard because it's commonly stored in home kitchens and does not taste sweet, so dogs who find it on counters eat large quantities before registering it as unpleasant.
How much is dangerous?
A 20-lb dog can show serious toxicity from 1 ounce of dark chocolate (70%+) or as little as 0.5 ounce of baking chocolate.
What are the symptoms?
- vomiting
- diarrhea
- excessive thirst
- restlessness
- muscle tremors
- seizures
- rapid or irregular heartbeat
- collapse
What should I do?
Emergency vet care. Provide the type of chocolate, estimated ounces, and dog's weight. Theobromine dose determines the treatment protocol.
Frequently asked questions.
How much dark chocolate is dangerous for a dog?
For a 20-lb dog: 1 oz of dark chocolate can cause GI distress; 2–3oz may cause cardiac symptoms. For a 5-lb dog, even a small bite of a dark chocolate bar warrants a call to the vet.
Is a small chip of dark chocolate OK?
A single small chip (1–2g) is unlikely to cause serious harm in a large dog, but immediate vet contact is still recommended to confirm the math.
Disclaimer: This information is for educational purposes only and does not constitute veterinary advice. Every dog is different. Always consult your veterinarian before making changes to your dog's diet or in the event of a potential poisoning emergency.