Would Tomatoes Make a Dog Sick?

Solanine, a substance found in the stem and leaves of the tomato and related plants, is harmful to dogs in large quantities. ... If your dog has consumed the green parts of a tomato plant, watch him carefully for signs of tomatine poisoning. Clinical signs of too much tomatine include: Gastrointestinal (GI) upset.

What to do if a dog eats a tomato?

If your dog has eaten green tomatoes or tomato leaves or stems, especially in large quantities, keep an eye on them, and call your veterinarian to be safe. And if your dog shows any of the above signs, go to the emergency vet right away.

Will tomatoes upset a dog's stomach?

Dogs can absolutely have the tomato fruit. ... While they are nontoxic, don't feed too much tomato to your dog because it can cause stomach upset. Tomatoes are notoriously acidic, which could definitely cause problems in a dog with a sensitive stomach.