Can Cats Eat Chocolate? A Guide on This Toxic Treat

But sometimes, some of the food we give can be dangerous for them, even when they aren’t harmful to us. One of those is chocolate. 

In short, cats cannot eat chocolate, and they shouldn’t even if it’s just a small piece. Chocolate has components in it that are dangerous for cats, notably theobromine and caffeine. Both these can cause cardiovascular and neurological symptoms. 

Unlike humans, cats cannot metabolize theobromine efficiently, making them more vulnerable to its toxicity.

What Types of Chocolate Are Unsafe for Cats?

Not all chocolates have the same level of toxicity. The different types of chocolates contain different amounts of these harmful chemicals, along with some other additions that could still be dangerous for your cat.

Baking Chocolate

Baker’s or baking chocolate contains the most caffeine and theobromine in all the types of chocolate available. This makes it the most dangerous type of chocolate for your cat. Even a tiny amount of this chocolate can be super lethal and detrimental to your cat’s health. 

Baking chocolate contains about 364 mg of theobromine in just one ounce.

Dark Chocolate

Dark chocolate contains the second-highest concentration of theobromine, making it a very dangerous runner-up to baking chocolate. Even a small amount can be lethal for cats. One ounce of dark chocolate for dogs can contain around 200 to 250 mg of theobromine.

Milk Chocolate

Milk chocolate is a lighter version of chocolate, but it is still dangerous to cats. It contains 57 mg of theobromine per ounce and can still poison cats if ingested in larger quantities. We advise you to avoid giving milk chocolate to your cats. 

Along with its theobromine content, its high sugar content can cause additional problems.

White Chocolate

Due to its unique ingredients relative to the other types of chocolate, white chocolate has zero caffeine and close to zero theobromine. However, even if it contains the least amount of theobromine, it's still dangerous. Plus, the high amounts of sugar can lead to obesity and diabetes. 

Is Chocolate Bad for Cats?

Yes, chocolate is bad for cats. When they consume chocolate, theobromine and caffeine start to affect them almost immediately. This can result in instant effects that can be seen throughout the body. 

The intensity of these symptoms ultimately depends on the amount and type of chocolate ingested. In many cases, it’s considered a medical emergency when cats eat chocolate. 

Vomiting and Diarrhea 

Vomiting and diarrhea are often the first signs of chocolate poisoning in cats. These symptoms are their bodies’ reactions to the harmful effects of chocolate. When chocolate enters their systems, they experience nausea, and their bodies immediately force out the harmful substance. 

Persistent vomiting is a problem, as it may lead to dehydration. All in all, cats that eat chocolate may experience digestive symptoms. 

Increase in Heart Rate and Blood Pressure

Caffeine and theobromine both cause negative effects on your cat’s heart, increasing blood pressure and heart rate. So, cats that eat chocolate, especially those that are smaller or have chronic health issues, are at risk. 

One possible complication is arrhythmias. These are irregular heartbeats that can cause serious issues. Because the heartbeats are irregular and out of sync, blood flow to other vital organs will be impaired. 

Restlessness and Hyperactivity

Chocolate contains caffeine, a compound that makes cats active and restless. This is bad for cats as it can disrupt their normal routines and prevent them from sleeping. The added energy will also make them want to go outside or display destructive behaviors.

Some cats may exhibit excessive meowing, restlessness, and constant moving.

Tremors and Seizures

In severe cases of chocolate poisoning, a cat may experience muscle tremors or seizures. These symptoms indicate a high level of toxicity, signaling neurological damage. 

Seizures usually present themselves as muscle tremors, shaking, and muscle spasms. These can occur at irregular intervals or at a continuous pace. If this goes on for long, your cat’s brain can be permanently damaged, leading to death. 

Increased Thirst and Urination

Because of dehydration from vomiting and diarrhea, as well as the buildup of toxins, cats that have eaten chocolate will experience excessive thirst and urination. However, even too much water can be a problem, as this can strain the kidneys and other essential organs. 

Respiratory Issues

Along with increasing a cat’s blood pressure and heart rate, chocolate can also cause respiratory issues. The components of chocolate increase a cat’s breathing rate, which can be in the form of labored or rapid breathing.