My dog ate chocolate: what to do right now

First, stay calm. Whether this is serious depends on your dog's size, the type of chocolate, and how much they ate. Here is how to find out fast and what to do next.

If your dog is unwell right now, call:

Do this now, in order

  1. Take the chocolate away and check what else was in reach. Keep the wrapper.
  2. Note three things: the type of chocolate (milk, dark, baking, cocoa powder), roughly how much, and what time.
  3. Estimate the risk with the calculator below.
  4. Call your vet or a poison hotline if the result is anything above minimal, if the amount is unknown, or if there were other ingredients like raisins or xylitol.
  5. Do not induce vomiting unless a vet tells you to. The wrong timing or the wrong dog can make things worse.

Estimate the risk

A standard chocolate bar is about 1.5 oz (43 g).
Not sure? Pick the darker option: the estimate should err on the safe side.
Below the usual symptom threshold~9 mg/kg theobromine

This dose is below the level that typically causes signs. Watch your dog for the next 12 hours and call your vet if you see vomiting, restlessness, or anything unusual, or if the real amount could be higher than you entered.

Still unsure? Talking to a vet is always a good next step, your own vet, or an online vet service, can help you decide whether to come in.

For a possible poisoning you can also call ASPCA Animal Poison Control at (888) 426-4435 or Pet Poison Helpline at (855) 764-7661.

Why chocolate is dangerous for dogs

Chocolate contains theobromine and caffeine, stimulants that dogs break down far more slowly than people do. The darker the chocolate, the more theobromine per ounce, so cocoa powder and baking chocolate are the most dangerous, and white chocolate the least. Because the dose is what matters, the same candy bar can be harmless for a large dog and an emergency for a small one.

Signs to watch for

Signs usually show within 6 to 12 hours and can last a couple of days. Do not wait for them to appear: early treatment works best.

Common questions

How much chocolate is toxic to a dog?

It depends on the dog's weight and the type of chocolate. Darker chocolate is far more dangerous: baking chocolate and cocoa powder contain many times more theobromine than milk chocolate. As a rough guide, problems can start around 20 mg of theobromine per kg of body weight, so a small dog can be affected by an amount a large dog would shrug off. Use the calculator above with your dog's weight for an estimate.

What are the symptoms of chocolate poisoning in dogs?

Early signs are vomiting, diarrhea, restlessness and increased thirst. As the dose rises you may see a racing heart, panting, tremors, and in severe cases seizures. Signs usually appear within 6 to 12 hours and can last for days because dogs clear theobromine slowly.

How long after eating chocolate will a dog show symptoms?

Usually within 6 to 12 hours, though it can be sooner with a large dose. Do not wait for symptoms to appear before acting: treatment is most effective when started early, ideally before signs develop.

What should I do if my dog ate chocolate?

Note the type of chocolate, roughly how much, and when. Estimate the risk with the calculator, then call your vet or a poison hotline. Do not try to make your dog vomit unless a vet tells you to. Keep the wrapper: raisins, macadamia nuts and xylitol are sometimes in the same product and are also toxic.

Can a dog die from eating chocolate?

Yes, in severe cases, particularly with dark or baking chocolate and small dogs, chocolate poisoning can be fatal through heart rhythm disturbances or seizures. Most dogs recover well when treated promptly, which is why acting early matters so much.

Sources: ASPCA Animal Poison Control, Merck Veterinary Manual, Pet Poison Helpline. Related: is chocolate safe for pets? and other foods dogs and cats should avoid.

This is general educational information, not veterinary advice. When in doubt about your own pet, ask your veterinarian.

If your pet just ate something risky, act now: call your vet, ASPCA Animal Poison Control at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661 (consultation fees may apply).