Can Dogs and Cats Eat Chocolate?
By the VetVerdict team · Last updated October 18, 2026 · General information, not veterinary advice
Dogs
ToxicEmergencyChocolate contains theobromine and caffeine, which dogs metabolize far more slowly than humans. Even small amounts of dark or baking chocolate can cause vomiting, tremors, an elevated heart rate, or seizures.
Cats
ToxicEmergencyCats are also highly sensitive to theobromine, and are less likely to eat it voluntarily — but any ingestion should still be treated as an emergency.
Why chocolate is dangerous for pets
Chocolate is made from cacao, which naturally contains stimulants called methylxanthines — mainly theobromine, plus some caffeine. People break these compounds down quickly. Dogs and cats do not, so they build up in the body and overstimulate the heart and nervous system.
Which chocolate is the most dangerous?
Not all chocolate carries the same risk. Cocoa powder, baking chocolate and dark chocolate contain far more theobromine than milk chocolate, while white chocolate contains very little. How much trouble a pet is in depends on the type, the amount and the pet's body weight — a few squares can be a much bigger problem for a small dog than for a large one.
Cats are just as sensitive but are less likely to eat chocolate. Watch for hidden extras too: chocolate-covered raisins or macadamia nuts add a second hazard, and some sugar-free chocolate products contain xylitol.
Signs to watch for
- Vomiting and diarrhea
- Increased thirst and urination
- Restlessness or hyperactivity
- Panting and a racing heartbeat
- Muscle tremors
- Seizures in severe cases
Signs usually begin within a few hours of eating chocolate and can last a long time, so do not wait for symptoms before calling for advice.
What to do
Write down what kind of chocolate it was, roughly how much, and when your pet ate it, and keep the wrapper. Then call your veterinarian or the ASPCA Animal Poison Control Center. A professional can tell you whether the amount is a concern for your pet's size.
Do not try to make your pet vomit at home unless a vet or poison-control specialist tells you to.
Safer alternatives
If you want to share a treat, choose products made for pets, or offer small pieces of plain cooked chicken or a carrot stick.
Frequently asked questions
Is a little milk chocolate okay?
Milk chocolate has less theobromine than dark chocolate, but there is no amount that is safe to feed on purpose. A small dog that eats a whole bar can still be in trouble, so call your vet or poison control if you are unsure.
What about cocoa powder or brownie batter?
Cocoa powder and baking chocolate are the most concentrated forms, so even a small amount of raw brownie batter can be a concern. Brownies and cookies may also contain other risky ingredients such as nuts or raisins.