CAN DOGS EAT TOMATO LEAVES & STEMS?
Tomato leaves, stems, and unripe green tomatoes contain solanine and tomatine — alkaloids that cause GI distress and neurological symptoms; ripe red tomato flesh is safe in small amounts.
Can Dogs Eat Tomato Leaves & Stems?
Why?
The tomato plant (Solanum lycopersicum) belongs to the nightshade family. Its leaves, stems, and unripe green fruit contain solanine and tomatine — alkaloid glycosides that cause GI irritation and can affect the nervous system in sufficient quantities.
Ripe red tomato flesh contains very low levels of these compounds and is generally considered safe for dogs in small quantities. The real danger is the green parts of the plant — leaves, stems, and green tomatoes — which gardening dogs may access in summer. Dogs who chew on tomato plants can ingest significant amounts of tomatine.
How much is dangerous?
Green parts are toxic; ripe red flesh is safe in moderation. Large quantities of green plant material can cause serious symptoms.
What are the symptoms?
- hypersalivation
- loss of appetite
- GI upset (vomiting, diarrhea)
- weakness
- confusion
- slow heart rate
- dilated pupils
What should I do?
Contact your vet if green tomato plant material was eaten. Supportive care is typically sufficient. Small amounts of ripe tomato flesh require no intervention.
Frequently asked questions.
Can dogs eat tomatoes?
Ripe red tomato flesh in small amounts is safe. The green parts of the plant — leaves, stems, unripe fruit — are not.
Is tomato sauce safe for dogs?
Commercial tomato sauce typically contains garlic, onions, and salt — all problematic. Plain cooked tomato with no additives is OK in small amounts.
Disclaimer: This information is for educational purposes only and does not constitute veterinary advice. Every dog is different. Always consult your veterinarian before making changes to your dog's diet or in the event of a potential poisoning emergency.