Can Dogs Eat Tomatoes?
4-minute read · Loyal Saints Food Safety Library
Quick answer
Ripe, red tomatoes are safe for dogs in small amounts, but green (unripe) tomatoes and the stems and leaves of the tomato plant contain solanine and should be avoided. Serve only ripe flesh, plain, in moderation — skip tomato sauces (garlic, onion, salt).
Ripe red tomatoes are safe for dogs in small amounts. The ripe flesh provides vitamins A, C, and K, potassium, and antioxidants like lycopene. A few pieces of ripe tomato make a fine occasional treat.
The important caution: green (unripe) tomatoes and the green parts of the plant — stems and leaves — contain solanine and tomatine, compounds that can be harmful to dogs in significant amounts. Only ripe red flesh should be offered, with stems and leaves removed. Also avoid tomato-based products like pasta sauce or ketchup, which contain garlic, onion, salt, and sugar that are unhealthy or toxic for dogs.
Key points
Verdict
Ripe flesh safe in small amounts — green parts unsafe.
Benefits
Vitamins A, C, K; potassium; lycopene antioxidant.
How to serve
Ripe red flesh only, plain, small pieces, in moderation.
Watch for
Green/unripe tomatoes, stems, leaves (solanine); sauces (garlic/onion).
This guide is general information, not veterinary advice. If your dog has eaten something potentially harmful, contact your veterinarian or the ASPCA Animal Poison Control Center (888-426-4435) right away.
Frequently Asked Questions
Can dogs eat tomatoes?
Ripe red tomatoes are safe for dogs in small amounts. However, green (unripe) tomatoes and the plant's stems and leaves contain solanine and should be avoided. Serve only ripe flesh, plain, and skip tomato sauces.
Are tomatoes bad for dogs?
Ripe tomatoes in small amounts are fine, but unripe (green) tomatoes and the green parts of the plant contain solanine and tomatine, which can be harmful. Keep dogs away from tomato plants and only offer ripe red flesh.
Can dogs eat tomato sauce or ketchup?
No — avoid tomato sauces and ketchup. They typically contain garlic, onion, salt, and sugar, which range from unhealthy to toxic for dogs. Offer only plain, ripe tomato flesh in small amounts.
What are the symptoms of tomato (solanine) poisoning in dogs?
Significant ingestion of green tomatoes or tomato plant material can cause GI upset, lethargy, weakness, or abnormal heart rate. It's uncommon from ripe tomatoes. If your dog eats tomato plants or many green tomatoes, contact your veterinarian.
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