Tomatoes for Dogs: A Complete Guide
Can dogs eat tomatoes? They can. Dogs and tomatoes might sound like strange bedfellows to anyone unfamiliar with making homemade dog food, but providing they’re red and ripe and not green and ghastly, tomatoes are actually very good for dogs.
They’re high in fibre which is likely to benefit your best friend’s digestive system. They’re rich in antioxidants which means they can help stave off the likes of cancer and canine degenerative diseases. And they can help promote good muscle health, strong bones, a healthy heart and improve its skin and coat. All the same things they can do for you and I in fact. Except the coat bit of course!
Can dogs eat tomatoes?
Yes, dogs can eat ripe, red tomatoes in moderation, just bear in mind that the green parts of the tomato plant are toxic says our in-house dog nutritionist.
What are the health benefits of tomatoes for dogs?
Tomatoes are low in both calories and fat. This makes them an excellent homemade dog food ingredient for any dog in need of losing a little weight. And they’re a good source of vitamins A, C and K together with potassium, chromium and magnesium.
Key nutritional benefits:
1. Cellular protection
Packed with lycopene, a powerful antioxidant that combats free radicals, protects cells and lowers the risk of chronic conditions.
2. Immune support
High in vitamin C, which strengthens your dog’s immune system, aids tissue repair and helps manage oxidative stress.
3. Sharp vision
Contains beta-carotene which converts to vitamin A, promoting healthy eyesight, night vision and optimal skin condition.
3. Healthy digestion
Loaded with soluble and insoluble dietary fibre to regulate bowel movements and support beneficial gut bacteria.
4. Heart and muscle health
A natural source of potassium, an essential electrolyte that aids proper nerve signalling, fluid balance and muscle contraction.
5. Bone and blood support
Rich in vitamin K, a crucial nutrient required for normal blood clotting and the maintenance of strong bone structures.
To safely share this juicy fruit with your constant canine companion, observe these strict rules:
- Avoid the green parts: the leaves, vines, stems and unripened green tomatoes contain tomatine and solanine. These glycoalkaloids can cause severe gastrointestinal distress and neurological issues if ingested.
- Keep portions small: treat tomatoes as an occasional snack, ensuring they make up no more than 10% of your dog’s daily caloric intake to prevent an upset stomach.
- Serve plain: never share commercial tomato products like ketchup, tomato soup or pasta sauces. These often contain toxic additives such as onions, excess salt and artificial sweeteners.
How much tomato can a dog eat?
As with most dog-safe fruit and vegetables, there really are no upper or lower limits to feeding a dog tomatoes except that they should never generally exceed around 10 percent of the overall diet.
As a starting point consider:
Always bear in mind that there is a trade off when cooking tomatoes. Cooking tomatoes (they only need lightly cooking), increases nutrient absorption but drastically decreases vitamin C.
Other dog-safe fruits
- Blueberries: antioxidant powerhouse.
- Apples: clean teeth & freshen breath.
- Bananas: boost energy.
- Watermelon: excellent hydration (92% water).
- Strawberries: help whiten teeth.
- Pumpkin: aids digestion.
- Mango: packed with beneficial nutrients.
See the full range of dog-safe fruits here.
Search our Tomato recipes:
The Dog Chef Guide to Homemade Dog Food
Looking to supercharge your dog's diet with fresh food?
How to feed a dog tomatoes
Here are four creative, dog-safe ways to serve fully ripe, red tomatoes to your pup:
1. Puppy Marinara Topper
Commercial tomato sauces are packed with onions and salt. Salt is not toxic to dogs. They require salt in their diet — just not too much of it.
That said, you can easily make your own safe, gourmet alternative with just a couple of ingredients.
- Skin and core two fully ripe tomatoes, making sure to completely remove the green top. Simmer the tomato flesh in a pan with a splash of water for 10 minutes until it breaks down, then puree it until smooth.
- Let the result cool completely, then ladle a tablespoon of this fresh, red sauce over your dog’s regular food. It provides a massive boost of lycopene, an antioxidant that supports cellular health and vision.
2. Frozen Tomato & Basil “Gazpacho” Bites
Blending ripe tomatoes with a touch of fresh basil creates a highly refreshing, antimicrobial summer treat.
- Blend the flesh of one fully ripe red tomato with 3 tablespoons of plain, unsweetened Greek yogurt and 1 finely chopped fresh basil leaf.
- Pour the mixture into silicone moulds and freeze for 3 to 4 hours. These creamy, savoury bites are incredibly low-calorie and excellent for cooling down your dog on hot days.
3. Sweet Cherry Tomato “Hide-and-Seeks”
Whole tomatoes make perfect, juicy little targets for mental enrichment games due to their natural bite-sized shape.
- Take 3 or 4 cherry tomatoes and pull off any green stalks or leaves.
- Drop them into the bottom of a rubber enrichment toy like a Kong and plug the opening with a smear of xylitol-free peanut butter. Your dog will have to roll and nudge the toy to get the juicy, popping treats out.
4. Savoury Tomato & Egg Omelette Bites
You can combine the high-quality protein of eggs with the rich vitamins of tomato flesh for a healthy, pan-fried breakfast treat.
- Whisk one medium chicken egg in a bowl. Finely dice a small tablespoon of red tomato flesh (seeds removed) and fold it into the egg.
- Pour the mixture into a warm, non-stick frying pan with a tiny drop of coconut oil. Cook thoroughly like a small pancake, slice it into bite-sized strips, and let it cool completely before serving.
Frequently asked questions:
Q. How to I prepare tomatoes for my dog?
A. To prepare tomatoes for your dog, only use completely ripe, red tomatoes and remove all green parts, including the stem, leaves and core. Green parts and unripe tomatoes contain compounds which are toxic to dogs. Rinse well under cold running water to remove dirt, wax or pesticide residue. Remove the stem, vines and leaves completely. Dice the red flesh into bite-sized pieces.
Q. Can dogs eat ripe tomatoes?
A. Yes, they can. Make sure they’re ripe and red and remove any green stems before feeding.
Q. Are green tomatoes toxic to dogs?
A. Yes. Unripe green tomatoes contain tomatine, a natural chemical that is harmful to a dog’s digestive and nervous systems.
Q. Can dogs eat tomato leaves and vines?
A. No, never. The green parts of the tomato plant contain the highest concentration of toxic alkaloids.
Q. What is tomatine poisoning?
A. It is toxicosis caused by consuming green tomatoes, stems or leaves. It causes gastrointestinal upset and neurological issues.
Q. Can dogs eat tomato sauce or ketchup?
A. No. Commercial sauces contain added sugar, salt and toxic ingredients like onion powder.
Q. Are cherry and grape tomatoes safe for dogs?
A. Yes, if ripe. Cut them in half before serving to prevent choking, especially in small breeds.
Q. Can dogs eat tinned tomatoes or tomato soup?
A. No. Shop-bought canned products and soups are loaded with high levels of sodium, preservatives and artificial flavourings.
Q. Can dogs eat cooked tomatoes?
A. Yes. Stewed or roasted tomatoes are fine if prepared without salt or seasonings.
Q. What are the nutritional benefits of tomatoes for dogs?
A. They provide lycopene which supports bone health and eyesight, potassium for nerve and muscle function and essential vitamins.
Q. How many tomatoes can a dog eat?
A. Feed in moderation — no more than 10 percent of your dog’s overall diet.
Q. Can puppies eat tomatoes?
A. Yes, puppies can eat tomatoes.
Q. Which dogs should not eat tomatoes?
A. Dogs prone to acid reflux, sensitive stomachs, kidney disease or arthritis should avoid tomatoes.
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