Can Dogs Eat Tomatoes?
Caution⚠️ Risky — depends on amount & dog
Ripe red tomatoes are fine in small amounts — but the green parts (stems, leaves, unripe fruit) contain solanine, and tomato sauces usually hide onion and garlic.
A slice of ripe tomato is harmless to most dogs. The nightshade toxin solanine lives in the plant's green material — stems, leaves, and unripe green tomatoes — which matters most for dogs with garden access. Sauces, soups, and pizza toppings are a separate problem: they're routinely loaded with onion, garlic, and salt.
What makes it dangerous: Solanine/tomatine (green parts only)
Symptoms to watch for
- GI upset
- Drooling
- Weakness or wobbly gait (large green-plant ingestions)
What to do right now
- Ripe tomato flesh: no action needed
- Garden plant grazing: remove access and call your vet if weakness or drooling appears
- Sauce with onion/garlic: treat as allium exposure
Sources: ASPCA. Educational reference — not veterinary advice.