Can Dogs Eat Tomatoes as a Snack?

Wondering if your pup can safely eat tomatoes? Are they poisonous
for dogs? Which fruits can dogs eat?

By Hungry Bark | September 21, 2021

Can Tomatoes Hurt My Dog?

The answer is a bit complicated, but in short… Ripened red tomatoes in small amounts are completely fine for dogs to eat from time to time. But tomato plants, leaves, and even unripened tomatoes could hurt your dog. This is why the answer is a bit more complicated than just a simple yes or no.

How Much Tomato Will Hurt a Dog?

As far as a typical ripened, red tomato—you shouldn’t give your dog too much. Because they are high in acidity, they can quickly give your dog an upset tummy and possibly diarrhea or vomiting.


And with treats in general, your dog shouldn’t consume more than 10% of their daily diet in snacks. Even when they are healthy snacks… everything is better in moderation.

Are Tomatoes Poisonous to Dogs?

If you’ve heard about tomatoes being poisonous for dogs, here’s why! Tomatoes are a part of what’s called the “nightshade” family of plants. And certain members of this family can be poisonous to dogs.


According to PetMD.com,There is a potentially toxic substance found in tomatoes—called tomatine—that can be very harmful when consumed in large quantities. However, ripe tomatoes contain such a small amount that... it’s not really a concern as far as toxicity goes.”

Can Dogs Eat a Tomato Plant and its Leaves?

The real problem is that the largest amount of tomatine is found in the actual tomato plant—it’s stems, stalks, flowers, and leaves. Although these plants can be dangerous for dogs, it’s also unlikely that a dog would consume enough of a tomato plant to really cause them too much harm.

It’s more likely that they would end up getting an upset stomach, and maybe some diarrhea or vomiting.

Can Dogs Eat Unripened Green Tomatoes?

The green, unripened tomatoes do contain more of the harmful toxin than red, ripened tomatoes. But not as much as the plants, leaves, etc. Again, your dog would have to eat quite a bit to do some real damage. But it’s best to avoid these altogether.


Nevertheless, if you think your dog has consumed some unripened tomatoes, or parts of the tomato plant, it’s always best to call your veterinarian so you can fully explain the situation, and receive professional medical advice.

Can Dogs Eat Tomato Sauce or Tomato Soup?

Although the tomato fruit itself would be fine in small doses for your pup, it’s best to avoid any tomato sauces or soups. Not only would your dog probably consume too large an amount of tomatoes this way, but there are other additives that could be harmful to them.


Most American foods have sugar added, which is very unhealthy for dogs. And things like tomato sauce or soup could contain garlic and onions—both of which can be toxic for dogs.

Can Dogs Eat Cucumbers?

A lot of people who ask about tomatoes also want to know if cucumbers are safe for dogs to eat. In the U.S., these two fruits go hand in hand in many meals and recipes. And the answer is yes, dogs can very safely eat cucumbers as a snack.

Cucumbers are low in sodium and low in calories. They contain all sorts of healthy goodness like: vitamins K, C, B1, potassium, copper, magnesium, and biotin. Honestly, cucumbers are a much healthier and safer snack choice compared to tomatoes.

What Can Dogs Not Eat?

There is a whole assortment of fruits, vegetables, and more that dogs can and cannot eat. But how do you know which is which? Well, we’ve got some lists below to help guide you through the process of figuring out which foods are most healthy for dogs. And which foods you should completely avoid.

Fruits Dogs Can Eat:

  • Apples – excellent source of vitamins A and C, and fiber
  • Bananas – high in potassium, vitamins, biotin, fiber, and copper
  • Blueberries – superfood rich in antioxidants
  • Cantaloupe – great source of fiber and low in calories
  • Cranberries – safe, but only in small portions
  • Cucumbers – vitamins K, C, B1, potassium, copper, magnesium, and biotin
  • Honeydew Melon – vitamin C, B6, K, folate, potassium, magnesium
  • Mangos – vitamins A, B6, C, E, potassium, beta-carotene, alpha-carotene
  • Oranges – vitamin C, potassium, and fiber
  • Peaches – vitamin A and fiber, but the pit is toxic
  • Pears – vitamins C, K, and fiber
  • Pineapple – vitamins, minerals, fiber
  • Raspberries – antioxidants, fiber, manganese, and vitamin C
  • Strawberries – fiber, vitamin C
  • Watermelon – vitamins A, B6, C, and potassium

Fruits Dogs Can't Eat:

  • Avocados – the pit, skin, and leaves contain a toxin that causes vomiting
  • Cherries – cherry plants contain cyanide, which is toxic
  • Grapes & Raisins – very toxic and can cause kidney failure
  • Tomatoes – the ripened fruit itself is typically safe, but the green plant is toxic

Vegetables Dogs Can Eat:

  • Broccoli – fiber, vitamin C, low in fat
  • Brussels Sprouts – antioxidants and other nutrients, but can cause gas
  • Carrots – low-calorie, high in fiber, vitamin A, and great for eyes and teeth
  • Celery – vitamins A, B, C, promotes heart health and fresh breath
  • Corn – nutrients, protein, fiber, and vitamins—only safe off the cob
  • Green Beans – high in fiber, vitamins, and minerals
  • Peas – vitamins, minerals, fiber, and protein
  • Spinach – safe, but only in small doses

Vegetables Dogs Can't Eat:

  • Asparagus – it’s too tough for dogs to eat when raw, and it loses its nutrients when it’s cooked soft enough
  • Mushrooms – some mushrooms are toxic for dogs, so it’s best to avoid all
  • Onions, Leeks, and Chives – from Allium plants that are toxic for dogs

Should I Feed My Dog Tomatoes as a Treat?

Although the tomato fruit itself is typically safe for dogs in small amounts, it’s high acidity can still cause your pup to have an upset stomach. And honestly, there are so many other great choices of healthy foods you could use as snacks. I would personally avoid the trouble and concern altogether, and I would not give my pups any tomatoes.

However, if they happen to consume some because they stole a bite off of your plate…In small doses, they should be completely fine!

How Can I Give My Dog a Well-Balanced Diet?

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For more articles with helpful pet parenting advice, check out The Daily Bark blog on HungryBark.com.



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