Why
Garlic is an Allium, like onions, chives and leeks. The ASPCA notes cats are more susceptible to Allium poisoning than dogs, and PetMD says even a clove can upset a cat's stomach.
What to do instead
- Avoid garlic in any form, including powder and garlic-seasoned meat.
Safer swaps from the same group: carrots, cucumbers, green beans.
Warning signs
- Watch for weakness, pale gums or reduced appetite.
- Call your vet for advice.
If your cat ate garlic
- 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 vegetables: quick answers
| Food | Verdict | Short answer |
|---|---|---|
| Chives | Toxic | No. Chives are an Allium, like onions and garlic. |
| Leeks | Toxic | No. Leeks are in the onion family and should be kept away from cats. |
| Onions | Toxic | No. Onions damage cats' red blood cells and can cause anemia. |
| Carrots | Safe | Yes, cooked and cut small. Carrots are one of the vegetables vets list as a safe treat. |
| Cucumbers | Safe | Yes. A few small pieces of washed cucumber are a safe, watery treat. |
| Green beans | Safe | Yes. Plain green beans are on the vet list of safe vegetable treats. |
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 garlic safe for cats?
No. Garlic is in the onion family and is toxic to cats.
What should I do if my cat ate garlic?
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)
- VCA Animal Hospitals, "Can You Feed Pets Certain Fruits and Veggies?"
Checked October 17, 2026. We are a reference, not a vet: if in doubt, call yours. How we check.