TailVilleWhy
Tomato leaves, stems and unripe green fruit contain glycoalkaloids such as solanine and tomatine, which can cause stomach upset and lethargy. Levels drop sharply as the fruit ripens, so ripe red flesh is fine in small amounts. If you grow tomatoes, keep pets from chewing the plants. Ketchup and tomato sauce contain salt, sugar, onion and garlic.
How to give it / if eaten
Wash a ripe red tomato, remove the green top and cut it small. Halve or quarter cherry tomatoes so they don't become a choking hazard. Keep treats under 10% of daily calories and skip ketchup and sauces.
Watch for these signs
Too much causes diarrhea, vomiting or an upset stomach. If your pet ate lots of leaves, stems or green tomatoes and shows drooling, vomiting, lethargy or wobbling, call your vet.
FAQ
Can my dog eat cherry tomatoes?
Ripe cherry tomatoes are fine. Remove the stem, cut them in half, and give just one or two to a small dog.
What about ketchup or tomato pasta sauce?
They usually contain onion and garlic along with salt and sugar, so don't share them. Stick to plain fresh tomato.
General information only. Weight, age and health conditions change how a pet reacts, so ask your vet if you are worried.