Why
Caffeine is a methylxanthine like the theobromine in chocolate. PetMD lists restlessness, rapid breathing, heart palpitations and muscle tremors.
What to do instead
- Keep coffee, tea bags, grounds and energy drinks out of reach.
Warning signs
- Even used grounds and tea bags contain caffeine.
- Call a vet if your cat eats some.
If your cat ate coffee
- Note how much your cat ate and when, and keep any packaging.
- Call your vet, an emergency clinic, ASPCA Animal Poison Control ((888) 426-4435) or the Pet Poison Helpline (855-764-7661).
- Don't make your cat vomit unless a vet tells you to.
Other seasonings and drinks: quick answers
| Food | Verdict | Short answer |
|---|---|---|
| Salty snacks | Avoid | Best avoided. Too much salt can cause serious illness. |
| Alcohol | Toxic | No. Even a small amount of alcohol can be deadly for a cat. |
Rules for any new food
- Plain is the rule: no salt, butter, oil, onion, garlic, sugar or sweeteners. Most of the danger in human food comes from what is added to it.
- Keep all treats under 10% of your cat's daily calories . The rest should come from a complete cat food.
- Check labels for onion and garlic powder, which turn up in stock, gravy, baby food and seasoned meat.
- If your cat has a health condition, such as diabetes, kidney disease or a sensitive stomach, ask your vet before adding any new food.
Frequently asked questions
Is coffee safe for cats?
No. Caffeine in coffee, tea and energy drinks is toxic to cats.
What should I do if my cat ate coffee?
Call your vet, an emergency clinic, or ASPCA Animal Poison Control at (888) 426-4435 right away. Note how much your cat ate and when.
Sources
- ASPCA Animal Poison Control, "People Foods to Avoid Feeding Your Pets"
- PetMD, "Human Foods That Are Dangerous for Cats" (reviewed by Nicole Silva, DVM)
Checked October 17, 2026. We are a reference, not a vet: if in doubt, call yours. How we check.