Tomatoes are a household favorite, being a core component in many of our dishes. Plus, they’re very healthy and good for our nutrition. But is it the same for our best friends? Can dogs eat tomatoes?
In this guide, we’ll talk all about the main benefits and risks of tomatoes. We’ll also talk about how to correctly feed your dog some.
What Are the Benefits of Tomatoes for Dogs?
Tomatoes are highly nutritious for dogs, offering key benefits such as:
Boosts Immunity
Tomatoes provide balanced amounts of lycopene and vitamins A and C, helping strengthen the immune system and reduce inflammation caused by free radicals.
Improves Digestion
Fiber offers improved bowel movements for dogs, helping them pass stool and avoid constipation. This also helps with nutrient absorption, ensuring dogs get the nutrients they need from their meals.
Supports Eye, Skin, and Coat Health
The beta-carotene and vitamin A content can improve a dog’s vision, skin health, and coat condition. Tomatoes also have lutein and zeaxanthin, which protect the eyes from excessive UV light, reducing the risk of retinal decline.
Vitamin C also plays a crucial role in collagen production, which is necessary for healthy skin.
Promotes Heart and Muscle Function
Due to the potassium, lycopene, and vitamin content, tomatoes regulate blood pressure, reduce the risk of cardiovascular disease, and aid in overall heart health. They also support and protect muscle function.
Reduces the Risk of Cancer
Ripe tomatoes have significant amounts of lycopene, which can combat oxidative stress and neutralize free radicals. Doing so potentially reduces the risk of cancer.
Low in Calories
Tomatoes are also low in calories, which means giving them as treats in the right amounts won’t significantly impact your dog’s diet.

When Are Tomatoes Bad for Dogs?
Even if tomatoes are nutritious for dogs, there are instances when they aren’t.
Unripe Tomatoes
Ripe tomatoes are safe, while unripe ones are dangerous. Unripe tomatoes contain high levels of solanine and tomatine, which are natural plant pesticides. These chemicals can cause severe health issues, including seizures, gastrointestinal distress, tremors, and severe poisoning in dogs.
The good thing is that as the tomatoes ripen, these chemicals significantly drop.
Tomato Leaves and Stems
Like unripe tomatoes, the leaves and stems of tomatoes contain high concentrations of solanine and tomatine. They can cause similar symptoms, which is why it’s important to always remove them before feeding tomatoes to your dog.
Overfeeding
Feeding too much can be bad for dogs, even if tomatoes are low in calories. The fruit is acidic, which means too much can lead to digestive upset, vomiting, diarrhea, and gas. It can also trigger acid reflux in dogs.
Processed Tomatoes
Tomato products meant for humans, such as pizza and pasta sauces, canned tomatoes, and ketchup, are dangerous for dogs. This is because of the high sodium content, preservatives, and toxic ingredients such as onions and garlic.
Eating these can lead to excessive thirst, dehydration, digestive issues, and even anemia.
Choking Hazard
When served in large pieces or as whole cherry tomatoes, they can be a choking hazard for dogs. This is dangerous and should always be avoided.
Allergic Reactions
Some dogs may be allergic to tomatoes, but this is quite rare. Some can have mild sensitivities to them.
How Many Tomatoes Can Dogs Eat?
If you’re planning on giving your dog some tomatoes, here’s a quick guide on how much they can eat.
Size of Dog | Amount of Tomatoes |
|---|---|
Small (Less than 10 kg) | 1-2 small pieces |
Medium (11 to 25 kg) | 2-3 small pieces |
Large (26 to 45 kg) | 3-4 small pieces |
Giant (More than 45 kg) | 4-5 small pieces |

How to Prepare Tomatoes for Dogs?
Serving tomatoes should be done correctly to keep them nutritionally sound for your dogs. Here are a few tips:
Remove All the Green Parts
Always choose ripe tomatoes for the treat. Remove the green parts, as they are dangerous and should not be eaten.
Wash Thoroughly
Wash the tomatoes properly to remove pesticide residue and dirt. This avoids any unnecessary problems after feeding.
Slice and Remove the Seeds
Slice the ripe tomatoes into small pieces and remember to remove the seeds. While they aren’t dangerous, they may cause mild digestive upset in some dogs.
Serve Plain and Slowly
Give one piece of tomato at a time. Don’t overfeed your dog and stick to the guide to know how much to give.
“Tomatoes are one of the many ways we can spicen up our dogs’ treats. Let’s do it the right way.”
- Dr. Nenad Misura
Final Thoughts
Dogs can eat tomatoes, and they can have them as long as they are ripe and given in moderation. Tomatoes offer dogs many benefits, including vitamins A and C, fiber, lycopene, lutein, and zeaxanthin. Just remember to prepare them the right way.
Frequently Asked Questions
Can dogs eat cooked tomatoes?
Yes, they can. However, the tomatoes should be ripe and cooked plain, without any salt, garlic, onions, oil, or other additives.
Is tomato juice good for dogs?
Store-bought tomato juice is bad for dogs due to the high sugar and additives. Anything that is processed for human consumption is generally bad for dogs.
Can dogs eat the seeds?
Dogs can safely eat the tomato seeds, but it’s recommended to remove them when serving to avoid any potential digestive upset.
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