Are Tomatoes Safe for Dogs?

Tomato plants and tomatoes themselves are toxic to dogs. However, most tomato products (like sauces or ketchup) are safe for dogs because they’re cooked to such a high temperature that the toxins are destroyed in the process. If you think your dog ate any part of a tomato plant or fruit, you should take them to the vet immediately. There’s also a risk of choking if your dog eats a tomato; it may be best to keep these fruits away from Fido altogether.

Raw, green tomatoes are toxic to dogs.

Tomatoes are a member of the nightshade family and contain tomatine, which is a glycoalkaloid that can be harmful to dogs. When ingested in large amounts, it can cause gastrointestinal distress and heart arrhythmias. This can occur even when your dog consumes just one or two green tomatoes, but more is required for toxicity if you’re feeding him ripe tomatoes—and overall he’s simply less likely to eat them since they’ve been cooked into kibble. Green tomato ingestion is more common than you might think: In veterinary practice we see an average of one case per month (though there have been months with no reports).

Most tomato plants are also poisonous to dogs.

Most tomato plants are also poisonous to dogs. In fact, most parts of the tomato plant are toxic to animals and humans alike. The stem, leaves, and pollen can all be toxic if consumed by your dog.

Tomato plant sap contains tomatine—a chemical compound that has been shown to cause vomiting in some dogs after consumption. However, not all dogs react negatively to ingestion of this substance; it largely depends on the individual animal’s level of sensitivity and exposure to the plant over time. Animals with a history of skin irritation from tomatoes may also be more likely to experience symptoms than those without past reactions.

Cooked tomatoes don’t pose a threat because of the heat used in the cooking process.

While raw tomatoes may pose a danger to your dog, cooked tomatoes are much safer—and tastier. The heat used in the cooking process reduces the concentration of solanine, which is one of the substances responsible for causing toxicity in dogs. As such, you should feel free to feed your pup some delicious pasta sauce or tomato soup with no worries!

Cooking also makes it easier for dogs’ bodies to digest certain foods, including tomatoes. This means that if your dog has an upset stomach (or any other digestive issues), you can give him tomato-based foods without worry that he’ll experience more discomfort than usual.

One of the biggest concerns about tomatoes is choking.

One of the biggest concerns about tomatoes is choking. The seeds are especially dangerous, as they can get stuck in the throat and cause a blockage in the throat or esophagus. This can be fatal if not treated immediately by a vet, so if you’ve given your dog a tomato and think he might have swallowed some seeds, go to an emergency vet right away.

It’s best to keep tomatoes away from your dog for its own safety.

If your dog has been snacking on tomatoes, it’s best to keep him away from the vegetable for his own safety. Tomatoes are toxic to dogs and can be poisonous if ingested in large quantities. The acidity of tomatoes can irritate a dog’s stomach lining and cause vomiting or diarrhea, which can make them dehydrated and sick.

In addition, tomatoes contain an alkaloid called tomatine that can affect a dog’s heart rate and blood pressure levels if he eats enough of them. Because of this effect on their hearts and circulatory systems, some veterinarians recommend that dogs with heart conditions should avoid eating these fruits altogether.


While cooked tomatoes aren’t poisonous for dogs, it’s best to keep them away from your pup. Feeding your dog raw tomatoes can lead to some harmful health conditions, and the risk isn’t worth it. If you want to give your dog a treat, try one of the other foods on this list that are both safe and healthy for them to eat. You’ll be able to enjoy a meal without having to worry about what happens when Fido gets his paws on one of these fruits.