Can Cats Eat Tomatoes?
A small amount of ripe, red tomato flesh is unlikely to harm a cat, but it is generally better to avoid offering it. The primary danger comes from the tomato plant itself. The green parts, including the leaves, stems, vines, and unripe green tomatoes, are toxic to cats.
Many cats show little interest in fruit, but a curious cat might nibble on a tomato plant in the garden or a tomato left on a counter. Because of the risks associated with the plant parts, it is safest to keep tomatoes and tomato plants out of your cat’s reach.
Tomatoes and cats: the facts in one table
| Verdict | Better avoided |
|---|---|
| What to do |
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| Remove or avoid |
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| Main risks |
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| Signs to watch |
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What makes tomatoes tricky for cats
The risk associated with tomatoes for cats lies in the green parts of the plant. The American Society for the Prevention of Cruelty to Animals (ASPCA) lists the tomato plant as toxic to cats. This includes the stems, leaves, and vines, as well as any tomatoes that have not yet ripened.
If a cat ingests these parts of the plant, it may experience a range of symptoms. The ASPCA lists the following signs of tomato plant poisoning:
- Drooling
- Loss of appetite
- Severe stomach upset
- Depression
- Weakness
- Dilated pupils
- Slow heart rate
The ripe, red flesh of the tomato is not considered toxic, but it is also not a necessary part of a cat’s diet. It is a good practice to supervise your pet around any new food.
How to offer tomatoes, and what to leave out
Given the risks, the safest approach is to skip offering tomatoes to your cat altogether. Keep indoor or outdoor tomato plants in an area your cat cannot access. Do not leave unripe green tomatoes on countertops or in places where a curious cat could find them.
If you do choose to offer a tiny piece of ripe tomato, ensure it is only the red flesh. Remove all stems and any green parts. Introduce any new food slowly and in a very small quantity to see how your cat reacts.
You should also avoid sharing prepared tomato products. Many sauces, soups, and dishes containing tomatoes include other ingredients that are harmful to cats, such as onions and garlic. Always check the ingredient list on packaged foods before sharing anything with your pet.
When to skip tomatoes altogether
It is best to avoid tomatoes entirely for cats with sensitive stomachs or a history of digestive problems. Cats with other health conditions or dietary restrictions should stick to their regular, veterinarian-approved diet.
If your cat has a habit of chewing on plants, you should not keep tomato plants in your home or garden. The risk of them ingesting the toxic leaves or stems is too high. It is always safer to choose another, more suitable treat for your cat.
When to call your vet
Most cats who eat a little plain tomatoes need nothing more than watching. Call your vet if anything below shows up, or if your cat has a health condition or is on a special diet.
If you suspect your cat has eaten any part of a tomato plant, especially the leaves, stem, or an unripe tomato, call your veterinarian or a pet poison hotline for guidance. One such resource is the ASPCA Animal Poison Control Center at (888) 426-4435, though a consultation fee may apply. Note the part of the plant eaten, how much you think was ingested, and the time it occurred. Keep any packaging for reference. Do not try to induce vomiting or provide any home remedies unless specifically instructed to do so by a veterinary professional.
Emergency signs: go now
- Collapse, fainting or severe weakness
- Seizures, tremors or trouble standing
- Trouble breathing or blue, gray or very pale gums
- Repeated vomiting or retching, or a swollen, painful belly
- Any known contact with a substance listed as toxic, even before signs appear
Book an appointment soon
- Vomiting or diarrhea that lasts or keeps coming back
- Not eating or drinking, or drinking much more than usual
- Drooling, pawing at the mouth or a swollen face
- Lethargy, hiding or acting unlike themselves
ASPCA Animal Poison Control Center: (888) 426-4435 (a consultation fee may apply). Your own vet or nearest emergency clinic is always a good first call.
Sources
Last checked October 21, 2026. Listings and guidance can change; your veterinarian knows your pet’s health history.