What are the symptoms of Chocolate poisoning in cats?

vomiting and diarrhea, excessive thirst and urination, restlessness and hyperactivity, rapid or irregular heartbeat, muscle tremors, seizures

Chocolate

Q: Can cats eat Chocolate?

Dangerous: Never — toxic, potentially fatal. Cats are more sensitive than dogs. Chocolate contains theobromine and caffeine, both methylxanthines that cats metabolize far more slowly than humans. While cats generally don't seek out chocolate, they can be exposed through dropped food or well-meaning owners. Dark chocolate and baking chocolate are far more dangerous than milk chocolate. Cats are smaller than dogs and more sensitive to theobromine, making even moderate amounts potentially lethal. The lethal dose of theobromine in cats is estimated at approximately 200 mg per kg of body weight. Source: ASPCA.

Dangerous

Verdict

Never — toxic, potentially fatal. Cats are more sensitive than dogs.

Toxic principle: theobromine, caffeine

Source: ASPCA · Verified 2026-06-12

If your cat ate this

Cats hide symptoms — don't wait and see. Even small amounts of certain substances can be fatal to a cat. Act fast.

1. Call your veterinarian immediately
US — National hotline: ASPCA Animal Poison Control Center (888) 426-4435 aspca.org(24/7, Consultation fee may apply.)
US — National hotline: Pet Poison Helpline (855) 764-7661 petpoisonhelpline.com(24/7, $89 per incident fee; also covers Canada.)
GB — National hotline: Animal PoisonLine 01202 509 000 animalpoisonline.co.uk(24/7, £35 per call (8am–8pm weekdays), £45 at other times.)
AU — National hotline: Animal Poisons Helpline 1300 869 738 animalpoisons.com.au(24/7)
NZ — National hotline: Animal Poisons Helpline 0800 869 738 poisons.co.nz(11am–7pm NZ time (currently being extended), Charges apply.)
CA — National hotline: Pet Poison Helpline (855) 764-7661 petpoisonhelpline.com(24/7, $89 per incident fee.)

Verified 2026-08-06

Verdict

Chocolate contains theobromine and caffeine, both methylxanthines that cats metabolize far more slowly than humans. While cats generally don't seek out chocolate, they can be exposed through dropped food or well-meaning owners. Dark chocolate and baking chocolate are far more dangerous than milk chocolate. Cats are smaller than dogs and more sensitive to theobromine, making even moderate amounts potentially lethal. The lethal dose of theobromine in cats is estimated at approximately 200 mg per kg of body weight.

Symptoms to watch for

• vomiting and diarrhea
• excessive thirst and urination
• restlessness and hyperactivity
• rapid or irregular heartbeat
• muscle tremors
• seizures

What to do

Contact your vet or ASPCA Poison Control (888-426-4435) immediately. Have the chocolate type and estimated weight consumed ready. Do not wait for symptoms — early treatment (inducing vomiting, activated charcoal) is far more effective.

ASPCA Animal Poison Control Center: (888) 426-4435 aspca.org