Not Safe for Dogs
Medium dog serving: never
Key warning: all tomato sauce — commercial and homemade contain garlic and onion
Can Dogs Eat Tomato Sauce? No — Contains Garlic and Onion
This food is NOT safe for dogs. Keep it away from your pet.
Tomato sauce is not safe for dogs. It contains garlic onion and high sodium in virtually all commercial and homemade preparations. Even basic marinara sauce contains garlic and onion making it toxic. Never give dogs tomato sauce in any form.
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Warning Signs & Symptoms
Garlic in all commercial tomato sauce: hemolytic anemia. Onion in most tomato sauce: hemolytic anemia. High sodium: digestive upset. High acidity: gastric irritation. Sugar in some varieties: digestive upset.
If Your Dog Ate This
Call vet or ASPCA Poison Control 888-426-4435 if significant amount consumed.
What to Avoid
all tomato sauce — commercial and homemade contain garlic and onion
Preparation & Serving
Check ingredients. Call vet if significant amount consumed — garlic toxicity concern.
Did you know?
The pairing of tomatoes with garlic — the combination that makes tomato sauce toxic to dogs — is so universal in Italian cooking that it is difficult to find any tomato sauce recipe without garlic. The combination works because allicin in garlic binds to flavor compounds in tomatoes enhancing their savory quality. This chemical synergy between garlic and tomato is why virtually every pasta sauce recipe worldwide contains garlic — and why virtually all tomato sauce is toxic to dogs.
Portions & nutrition
- Serving (small dog)
- never
- Serving (medium dog)
- never
- Serving (large dog)
- never
- Calories (per 100g)
- 32
- Safe frequency
- Never
Source
What You Need to Know
All commercial tomato sauces — marinara pasta sauce pizza sauce — contain garlic and typically onion making them consistently toxic to dogs. Even homemade tomato sauce universally uses garlic. The only safe tomato preparation for dogs is plain ripe tomato without any additions. Dogs given tomato sauce from pasta or pizza develop toxicity from the allium content not from the tomato itself.
Not sure what to do next? Read our emergency guide What to Do If Your Dog Eats Something Toxic
Want to know what other dangers are hiding in your home?
Take the 60-second kitchen safety quiz to find out your dog's risk score.
Take the safety quizIf Your Dog Ate This — Act Now
- Dog Food Toxicity CalculatorCheck severity based on your dog's weight
- Emergency GuideWhat to do in the next 60 minutes
- Dog Poisoning SymptomsKnow what to watch for
- Dog Poisoning TreatmentWhat vets actually do
- Emergency Vet CostHow much will treatment cost?
- Best Pet InsuranceBe prepared before the next emergency
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