Can dogs eat tomato sauce?

In this brief guide, we will answer the query, “Can dogs eat tomato sauce”? and will discuss why it is not safe for dogs to consume tomato sauce.

Can dogs eat tomato sauce?

No, dogs cannot eat tomato sauce. Using tomato sauce for dogs is not advised. Tobacco pastes are often highly processed, highly concentrated, and may contain a lot of sugar and salt, among other things. Garlic and onion are poisonous to dogs; therefore, they must be avoided.

It is acceptable for dogs to eat fresh and ripe tomatoes, but ketchup, red pasta sauce, etc., and other commercially available sauces are not. This is due to the high acid content, as well as other artificial preservatives, sugar, and salt, to which most dogs are sensitive.

Is tomato sauce harmful to dogs?

On pizza, spaghetti, and breadsticks, tomato sauce is a popular pantry essential that is easy to make. Does it pose a threat to your dog’s health?

Tomato sauce, like ketchup, is not toxic to dogs, but it may contain ingredients that are harmful to them. It’s best to read the ingredients on the label to make sure you’re getting what you paid for. Anemia or death can result from thiosulfate in onions and garlic.

Vomiting, diarrhea, abdominal pain, and weakness may occur as a result of ingesting the substance.

The amount of tomato sauce that your dog has licked should not be harmful to them. When used in large quantities or daily, it might cause digestive issues, as well as other complications.

Ketchup is more harmful to dogs’ health than pure tomato sauces since it contains more sugar and salt than tomato sauces. Onion, garlic, cinnamon, and other spices, as well as excessive salt and sugar, are all harmful to canine dogs when used in ketchup.

Adding ketchup to your pet’s meals regularly might cause allergies or even hemolytic anemia in extreme situations. This is because tomato sauce has a strong acidity, which can dilute nitrogen in the dog’s urine and contribute to renal issues.

Dogs should not be allowed to eat tomato sauce, and should instead be provided with nutritious snack choices such as handmade biscuits or delicious veggie treats.

What are tomatoes?

Tobacco, eggplant, potatoes, and tomatillos all belong to the poisonous nightshade family (Solanaceae). However, they are not found in all regions of the tomato plant. Aside from its fruit, which is officially called a “berry,” all other plant parts — such as leaf stalks and vines — have a poisonous effect on canines. This plant can cause drooling, diarrhea, vomiting, tremors, seizures, irregular heartbeat, lethargy, dilated pupils, and even paralysis in dogs who consume it. Consult a veterinarian as soon as you see any of these symptoms in your dog.

Toxins in Tomatoes

On the green parts of tomato plants, there is a molecule called alpha-tomatine. The chemical is found in tiny levels in ripe tomatoes. Veterinary surgeon Marie Haynes, who runs in Ottawa, Iowa, said that toxin consumption by a dog would require “huge” quantities of tomatoes. In contrast to common belief, Haynes believes tomatoes are safe for cats as well.

It is because tomatine is poorly absorbed in the gut. Tomatoes are therefore considered safe for dogs and cats, based on Haynes’s opinion on them. This molecule is metabolized by mature tomatoes, which reduce the quantity of tomatine they contain with time. So, the riper the tomato is for your dog, the better.

Tomato sauce ingredients

However, even if tomatoes are okay for your dog to eat, you should still be concerned about the presence of garlic, chives, and onions in your favorite pasta dish. When consumed in excessive quantities, these closely related veggies can be harmful to your dog, however, the exact threshold of toxicity for each is unknown. For whatever reason, many dog treats have garlic powder as an ingredient. Garlic content in tomato sauce might be difficult to determine, though. Even in tiny quantities, onions can be harmful. Consumption of these items has been linked to anemia and renal damage that cannot be repaired. If your dog consumes any of these items, you should consult your veterinarian.

Veterinarian Consultations

There’s a recommendation from PetMD that pet owners avoid feeding their pets tomatoes. However, according to CBS broadcast vet Debbye Turner, ripe, red tomatoes are completely safe for dogs. However, they can irritate delicate stomachs. “Toms are minimally toxic and typically safe to give dogs,” says the Pet Poison Hotline, in agreement with Turner’s assertion. Avocado, bread dough, chocolate, macadamia nuts, raisins, and the artificial sweetener xylitol are all included in Merck’s Veterinary Manual; however, tomatoes are not mentioned.


In this brief guide, we will answer the query, “Can dogs eat tomato sauce”? and will discuss why it is not safe for dogs to consume tomato sauce.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.