Can Dogs Eat Ketchup? No — Contains Toxic Onion and Garlic Powder

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

Ketchup is not a good treat for dogs. It is high in sugar and sodium, and many brands list onion powder; some also list garlic powder. Those Allium ingredients can damage red blood cells if a dog eats enough, especially a small dog, but a lick or small smear is unlikely to cause serious harm. Check the label and do not use ketchup as a food topper.

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Warning Signs & Symptoms

Onion or garlic powder (if listed): can damage red blood cells; signs may be delayed for several days. High sugar and sodium: stomach upset. Risk is higher with larger amounts, repeated exposure, or small dogs.

If Your Dog Ate This

A lick or a small smear of ketchup is unlikely to cause serious harm, but check the label. Many ketchups list onion powder, and some list garlic powder, which can damage red blood cells in larger amounts. If your dog ate a large amount, drank from the bottle, or is small and the label lists onion or garlic, call your vet or an animal poison-control service such as the ASPCA Animal Poison Control Center (888-426-4435; a consultation fee may apply) for advice. Watch for vomiting or diarrhea, and get veterinary care promptly for weakness, pale gums, or red or brown urine, which can be delayed for several days. Do not try to make your dog vomit unless a veterinarian or poison-control expert tells you to.

What to Avoid

all ketchup — regular and reduced-sugar varieties

Preparation & Serving

Check for onion and garlic powder. Call vet if significant amount consumed — hemolytic anemia develops over days.

Portions & nutrition

Serving (medium dog): never
Serving (large dog): never
Calories (per 100g): 112
Safe frequency: Never

Source

Source: SAFEFOODFORDOGS

What You Need to Know

Many commercial ketchups list onion powder, and some list garlic powder. Onion and garlic can damage red blood cells; how serious the risk is depends on how much was eaten, how often, and your dog's size. The high sugar and sodium content can also cause stomach upset. Never give dogs ketchup as a food topper or treat.

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

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If Your Dog Ate This — Act Now

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Frequently asked questions

Is Ketchup safe for dogs?: No, Ketchup is not safe for dogs. Ketchup is not a good treat for dogs. It is high in sugar and sodium, and many brands list onion powder; some also list garlic powder. Those Allium ingredients can damage red blood cells if a dog eats enough, especially a small dog, but a lick or small smear is unlikely to cause serious harm. Check the label and do not use ketchup as a food topper.
What happens if a dog eats Ketchup?: If a dog eats Ketchup, they may experience: Onion or garlic powder (if listed): can damage red blood cells; signs may be delayed for several days. High sugar and sodium: stomach upset. Risk is higher with larger amounts, repeated exposure, or small dogs.
How much Ketchup can a dog eat?: Many commercial ketchups list onion powder, and some list garlic powder. Onion and garlic can damage red blood cells; how serious the risk is depends on how much was eaten, how often, and your dog's size. The high sugar and sodium content can also cause stomach upset. Never give dogs ketchup as a food topper or treat.

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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.