What happens if a dog eats Ketchup?

If a dog eats Ketchup, they may experience: Onion/garlic toxicity: hemolytic anemia, vomiting, diarrhea. High salt: sodium poisoning.

Not Safe

Not SafeVet ReviewedReviewed by Dr Alex Crow BVetMed MRCVScondiment

Not Safe for Dogs

Key warning: all types — all commercial ketchup

Can Dogs Eat Ketchup? No — Onion Powder in All Commercial Brands

This food is NOT safe for dogs. Keep it away from your pet.

Ketchup is not safe for dogs. It contains onion and garlic powder which are toxic, plus high sugar and salt.

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Warning Signs & Symptoms

Onion/garlic toxicity: hemolytic anemia, vomiting, diarrhea. High salt: sodium poisoning.

If Your Dog Ate This

Monitor for digestive upset. Seek vet care if large amounts consumed.

What to Avoid

all types — all commercial ketchup

Preparation & Serving

Keep ketchup away from dogs. Check all condiment bottles before allowing access.

Safer Alternatives

Plain mashed ripe tomato as a very occasional safe alternative

Did you know?

Commercial ketchup contains onion powder and garlic powder as standard ingredients — these are listed as "natural flavors" on some labels making them difficult to identify without reading carefully.

Portions & nutrition

Toxic dose (per kg body weight): Onion and garlic powder plus high sugar and sodium — any significant amount harmful
Calories (per 100g): 101
Safe frequency: Never

Source

Source: ASPCA

What You Need to Know

Even small amounts of ketchup can be problematic due to the onion and garlic seasoning. Never allow dogs access to condiments or dipping sauces.

Ketchup Variations

Ketchup for DogsCaution Ketchup for DogsNot Safe

Not sure what to do next? Read our emergency guide What to Do If Your Dog Eats Something Toxic

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Frequently asked questions

Is Ketchup safe for dogs?: No, Ketchup is not safe for dogs. Ketchup is not safe for dogs. It contains onion and garlic powder which are toxic, plus high sugar and salt.
What happens if a dog eats Ketchup?: If a dog eats Ketchup, they may experience: Onion/garlic toxicity: hemolytic anemia, vomiting, diarrhea. High salt: sodium poisoning.
How much Ketchup can a dog eat?: Even small amounts of ketchup can be problematic due to the onion and garlic seasoning. Never allow dogs access to condiments or dipping sauces.

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Medical Disclaimer: This information is for educational purposes only. Always consult a licensed veterinarian before making dietary changes for your pet.