Every dog is different. Individual allergies and sensitivities are common — always introduce new foods in small amounts and watch for adverse reactions. This site is for informational purposes only and is not veterinary advice. Always consult your vet.
The Full Picture
Ripe, red tomato flesh is generally safe for dogs in small quantities. However, the green parts of the tomato plant — stems, leaves, and unripe green tomatoes — contain solanine and tomatine, which are toxic to dogs. Symptoms of tomatine poisoning include gastrointestinal upset, lethargy, weakness, and confusion. Keep dogs away from tomato gardens. Avoid giving dogs tomato sauce, ketchup, or soup, which contain salt, sugar, garlic, onions, or other harmful ingredients.
What You Should Know
While tomatoes is not outright toxic, there are important precautions to bear in mind before sharing it with your dog. Portion size matters, and certain preparations or varieties may be unsafe. If your dog has any existing health conditions, check with your vet first.