Cat Chocolate Toxicity Calculator

Use this emergency tool to estimate the risk if your cat ate chocolate. Calculate theobromine dosage and get immediate advice.

Calculate Toxicity Risk

Kilograms
Grams

Why is Chocolate Toxic to Cats?

Chocolate contains theobromine and caffeine, both of which are methylxanthines. While humans can metabolize these compounds easily, cats (and dogs) process them very slowly, leading to a toxic buildup in their system.

The danger depends on the darkness of the chocolate. Darker chocolate contains more theobromine and is therefore more dangerous. Even small amounts of cocoa powder or baking chocolate can be fatal.

Symptoms of Chocolate Poisoning in Cats

Symptoms typically appear within 6-12 hours of ingestion and can last up to 72 hours:

  • Mild: Vomiting, diarrhea, increased thirst, restlessness.
  • Moderate: Hyperactivity, increased urination, racing heart rate (tachycardia).
  • Severe: Muscle tremors, seizures, heart failure, coma.

Frequently Asked Questions

How much chocolate will kill a cat?

It varies by weight and chocolate type. For a 4kg cat, as little as 15g of baking chocolate or 50g of dark chocolate can cause severe symptoms. Cocoa powder is even more potent.

My cat ate white chocolate. Is that safe?

White chocolate contains negligible amounts of theobromine, so the risk of toxicity is very low. However, the high fat and sugar content can still cause pancreatitis or severe stomach upset.

Can I induce vomiting at home?

Do NOT induce vomiting unless specifically instructed by a veterinarian. Hydrogen peroxide can cause severe ulcers in cats and may be more dangerous than the toxin itself.

How long does it take for symptoms to show?

Clinical signs usually appear within 6 to 12 hours after ingestion. Early intervention is critical before the toxin is fully absorbed.

References

  1. ASPCA Animal Poison Control Center - Chocolate.
  2. Merck Veterinary Manual - Chocolate Toxicity.
  3. Pet Poison Helpline - Toxin Trends.

Written & Reviewed by

Khem Raj

Cat Care Specialist & Developer

Our content is grounded in veterinary science and regularly updated to reflect the latest nutritional guidelines for feline health.