Can a cat eat coffee beans?

In this article, we will provide the answer to the question: “Can a cat eat coffee beans?”. In addition, we will discuss the health effects of cats eating coffee beans and other foods toxic to cats.

Can a cat eat coffee beans?

No, cats can not eat coffee beans because of the caffeine. Coffee stimulates the central nervous system due to caffeine, accelerating the animal’s metabolism, which can cause tachycardia in hypertensive cats.

Caffeine is present in coffee, green tea, mate tea, and energy drinks. It is a central nervous system stimulant and can cause vomiting, diarrhea, hyperactivity, seizures and death.

Giving your cat large amounts of caffeine can be fatal. And worse, there is no antidote that can save him. Rapid breathing, palpitations, not being still, muscle tremors, are some of the symptoms of this stimulant. Remember that caffeine is not only present in coffee and tea, but also in cocoa, chocolate, coca-cola and energy drinks like Red Bull.

What other foods are toxic to cats?

The other foods toxic to cats are milk, grapes, alcohol, fats and eggs. Tuna is one of the favorite dishes of these four-legged animals and eating tuna every now and then – whether for humans or specially prepared for cats – doesn’t hurt anyone. 

But if your animal regularly eats tuna prepared for humans, it will have a poor diet, as this food does not have the nutrients that the animal needs. And tuna can cause mercury poisoning.

There are owners who use grapes as food to ‘gift’ their cats and, if that’s your case, it’s best to stop. It is not known why but grapes and raisins cause kidney failure. Even small doses of these foods make cats sick. Watch out for signs like vomiting and hyperactivity. Even if your cat doesn’t like grapes or raisins, keep them out of reach.

As with dogs, chocolate can be fatal for cats because it contains theobromine, a toxic agent for these animals. While all chocolates are dangerous, the worst are dark chocolate and cooking chocolate. When ingesting this food, the cat can have an altered heart rate, tremors, convulsions and even die.

Most people wouldn’t give alcohol to animals, but it never hurts to reinforce. Do not give your cat drinks such as beer, liquor, wine, whiskey, etc. These products have an effect similar to that of humans on the brain and liver of these animals, but worse, because they destroy their organs much more quickly. Two tablespoons of whiskey can put a cat weighing just over two pounds in a coma. One more spoon and the animal dies.

Whether raw, cooked or even powdered, onions can cause a cat’s red blood cells to break down, which can lead to anemia. Like tuna, eating it once is fine, but don’t give it a large amount or regularly. Garlic and chives, in turn, can cause gastrointestinal problems.

Do you know the classic of giving a small cat a glass of milk? Forget. Most of these animals are lactose intolerant. Your digestive system doesn’t process dairy products like yogurt and cheese, which can cause diarrhea.

Also do not give candy and tablets. The ‘bad guy’ in this case is xylitol, a component that can be found in candy, chewing gum, toothpaste, among others. It can cause an increase in insulin circulating in the cat’s body and lead to liver failure. Be on the lookout for symptoms such as vomiting, lethargy, and loss of coordination.

Are you one of those people who lets your cat lick the plate at the end of the meal? Maybe it’s not a good idea. Often, the leftovers we leave on the plate are fat or bones and the fat, cooked or raw, can cause intestinal problems in cats, such as vomiting and diarrhea. 

Cats can still suffocate on the bones, and worse, the bones can break into small pieces and cause an obstruction or tear in the digestive system.

Do coffee grounds repel cats?

Yes, coffee grounds repel cats. Coffee powder is an effective repellent to keep away cats and is quite simple and practical to implement in your home. The coffee grounds that are left over in the preparation of the drink can be applied for this purpose. 

As it heavily soils the surfaces on which it is placed, it is recommended to use a cloth with coffee grounds to spread its aroma throughout the spaces.

Cats often roam around and often visit other people’s gardens. If the visit of felines is unwanted in your area, just leave coffee grounds in the garden and the dust will drive away from the cats, who don’t like your smell.


In this article, we provided the answer to the question: “Can a cat eat coffee beans?”. In addition, we discussed the health effects of cats eating coffee beans and other foods toxic to cats.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.