Tomatoes

Can Dogs Eat Tomatoes?

Written by: Kate Hepplewhite

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Tomatoes are a staple in many of our meals-but what about our dogs? If your pup has ever looked longingly at your plate of pasta or eyed a garden tomato, you might be wondering whether it's safe to share. The answer is yes, but with a few important precautions.

Let’s dig into when tomatoes are safe, when they’re not, and how to serve them in a way that’s healthy and dog-friendly.

Are Tomatoes Safe for Dogs?

Yes, ripe, red tomatoes are generally safe for dogs to eat in moderation. The key word here is ripe. That’s because unripe tomatoes and the green parts of the plant contain solanine and tomatine, two natural toxins that can be harmful to dogs if ingested in large amounts (FDA, 2023).

As long as the tomato is fully ripe and served in small pieces, it can be a safe treat. However, tomatoes should never make up a significant portion of your dog's diet. It should be a ‘sometimes’ food.

Tomato Parts to Avoid

While the flesh of ripe tomatoes is safe, stems, leaves, and unripe green tomatoes are not. These parts contain higher levels of tomatine, which can affect your dog’s nervous system, digestive health, and even heart rate.

If you grow tomatoes at home, it’s a good idea to keep your dog away from the garden to avoid accidental snacking on the wrong parts.

Nutritional Benefits of Ripe Tomatoes

Ripe tomatoes contain several beneficial nutrients that support your dog’s health:

  • Vitamin C: Supports immune function.
  • Vitamin A: Helps maintain skin and coat health.
  • Lycopene: An antioxidant linked to reduced inflammation and cancer protection.
  • Fibre: Supports digestion in small amounts.

However, these benefits are best gained through a varied, balanced diet. Tomatoes should only be offered occasionally, not daily

How to Serve Tomatoes to Your Dog

To safely offer your dog a tomato:

  • · Choose fully ripe, red tomatoes.
  • · Wash thoroughly to remove pesticides.
  • · Remove stems, leaves, and any green parts.
  • · Cut into small, manageable pieces.
  • · Offer plain – no salt, oils, or sauces.

Avoid canned or cooked tomatoes that include onions, garlic, or spices, all of which are toxic to dogs.

What Is Tomatine?

Tomatine is a naturally occurring compound found in tomatoes, particularly in the green parts of the plant such as the leaves and stems, as well as in unripe fruit. It acts as a natural defence for the plant against pests and fungi. While ripe tomatoes contain only trace amounts, green tomatoes and other parts of the plant can have higher concentrations.

When ingested in large amounts, tomatine can cause gastrointestinal upset and neurological symptoms in dogs. This condition, known as tomatine poisoning, may include symptoms such as drooling, vomiting, diarrhoea, muscle weakness, and in severe cases, a slower heart rate or confusion.

If you suspect your dog has consumed any part of the tomato plant that might be unsafe, consult your vet immediately. Prompt attention can prevent serious complications.

dogs on worktop overseeing vegetables

Conclusion

In short, yes - dogs can eat ripe tomatoes, but moderation and preparation are crucial. Avoid all green parts of the plant, and stick to small, occasional portions as a tasty, healthy snack.

When in doubt, always check with your vet before introducing new foods to your dog’s diet.

Tomato FAQs

Can dogs eat cherry tomatoes?

Yes, as long as they are ripe and red. Cherry tomatoes are safe in small amounts but should be cut in half to avoid choking

Are cooked tomatoes okay for dogs?

Plain, cooked tomatoes without salt, spices, onions, or garlic are generally safe. But avoid pasta sauces and canned varieties that contain added ingredients.

What should I do if my dog eats a green tomato?

Watch for signs of tomatine poisoning such as vomiting, drooling, or lethargy. Call your vet straight away if symptoms appear.

Can puppies eat tomatoes?

It's best to avoid tomatoes in puppies due to their smaller size and developing digestive systems. Stick to dog-specific treats and vet-approved fruits and vegetables

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