Cat Chocolate Toxicity Calculator: How much chocolate is deadly for my cat?

cat with chocolate

Are you wondering if your cat can eat chocolate? No, just like dogs, cats cannot eat chocolate. If consumed in the right amount, it can kill your feline.

How much chocolate can kill a cat?

In general, 200 mg per kg or 90mg per pound is considered toxic and potentially fatal for cats. This varies based on the type of chocolate, the age, and the weight of the cat.

To help make things a little easier, enter your cat's information into my chocolate toxicity calculator below.

Cat's Weight (in pounds):
Amount of Chocolate (in ounces):
Type of Chocolate:



This Cat Chocolate Toxicity Calculator is intended for informational and educational purposes only. It is not a substitute for professional veterinary advice, diagnosis, or treatment. Always seek the advice of your veterinarian with any questions you may have regarding your pet's medical condition.

Why is chocolate bad for cats?

Chocolate contains caffeine and theobromine, harmful stimulants to cats and dogs alike. These substances negatively affect their nervous and cardiovascular systems.

The presence of theobromine in chocolate is particularly problematic for cats. Unlike humans, cats process it much slower. This slow processing increases the risk of toxic buildup in their system.

Symptoms like vomiting, diarrhea, and an increased heart rate can occur even from small amounts. Severe cases may lead to abnormal heart rhythms, seizures, and potentially, death.

It's crucial to monitor your cat for any unusual behavior after accidental chocolate ingestion. Early detection and intervention can be life-saving for your feline friend.

Can cats have chocolate milk?

No, although chocolate milk contains less theobromine than other chocolate treats, it is potentially fatal for cats in large enough doses.

The combination of lactose and theobromine in chocolate milk can be especially harmful. Many cats are lactose intolerant, which adds to the health risks.

Even small amounts of chocolate milk can cause gastrointestinal distress in cats. Symptoms may include upset stomach, diarrhea, or even more severe reactions.

Cats do not have the necessary enzymes to properly digest the lactose in milk. This intolerance is exacerbated when combined with chocolate's toxic properties.

Chocolate milk may also contain additional sugars and additives. These can contribute to obesity and other health issues in cats over time.

It's a misconception that milk is a suitable treat for cats. In reality, most adult cats should avoid dairy products altogether.

Alternative treats should be considered for rewarding or bonding with your cat. There are many cat-safe treats available that provide nutritional benefits without the risks.

Can cats eat cocoa?

Cocoa should especially be avoided as it likely has a high concentration of theobromine. Pure cocoa, even in small amounts can kill a cat.

How long after a cat eats chocolate will symptoms show?

If symptoms show at all, it can take up to 4 hours. Vomiting is likely the first symptom to show, followed by loss of appetite, and panting.

Conclusion: Keep your kittens away from your Kit Kats

Cats are nimble, agile, quick, and very curious. The same traits that make them great pets also put them at risk of ingesting harmful substances.

Keep your chocolate treat sealed in a cat-proof container and be sure your
little ones aren't sharing their Halloween haul with them.
If you're curious about lethal levels of chocolate for your dog,
check out my dog chocolate toxicity calculator.

Matt Irving is the CEO of Super Easy Tech, LLC.
Matt is the founder of Make It Super Easy and creator of Super Easy CRM. He is a beast of a software engineer, blogger, and gamer. Feel free to connect on any of the platforms listed below.

Posted by: Matt Irving on 1/28/2024