Dogs should not eat chocolate. Chocolate contains theobromine and caffeine, both methylxanthines that dogs clear from their bodies more slowly than humans do. That is why even a small amount can be dangerous, especially for smaller dogs, puppies, and dogs with heart conditions.

Risk rises with the type of chocolate. Cocoa powder and unsweetened baking chocolate generally contain the highest concentration of theobromine, followed by dark chocolate, then milk chocolate. White chocolate contains very little theobromine but is still fatty and sugary, so it is not a good treat either.

Symptoms of chocolate toxicity can include vomiting, diarrhea, restlessness, panting, increased thirst, racing heart, tremors, seizures, and collapse. Signs may appear within a few hours, but do not wait to see how bad it gets if you know or suspect your dog ate chocolate. Contact your veterinarian or an emergency veterinary clinic right away and tell them your dog’s weight, the type of chocolate, and roughly how much was eaten.

Prevention is straightforward: store chocolate, baking supplies, and cocoa-based snacks out of reach, secure trash cans, and remind guests and children not to share treats. If you want to include your dog in celebrations, use dog-safe recipes or commercial treats formulated for canine digestion.

This information is educational and not a substitute for urgent veterinary advice. When in doubt, seek professional help immediately.