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Can Dogs Eat Mustard?

Only with caution

Please read the risks below before offering any.

Illustration of mustard

Is mustard safe for dogs?

Mustard is a tangy condiment made from mustard seeds, which contain compounds that can irritate the digestive tract in large amounts. A small lick of plain mustard is unlikely to cause serious harm, but mustard seeds contain compounds that can irritate the stomach, and mustard is not a food dogs need.

How to reduce the risks if you offer mustard

What to avoid

How much mustard can my dog have?

If you decide to offer mustard despite the cautions above, give just one tiny taste and check with your vet first, especially if your dog has any health condition. When in doubt, skip it.

Signs your dog may be having a problem

Watch for vomiting, diarrhea, drooling, pawing at the mouth, loss of appetite, tiredness, a swollen or painful belly, or trouble breathing. Contact your vet right away if you see these signs, or if your dog has eaten any of the parts listed above.

Emergency? Call your vet or an animal poison hotline straight away: ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661 (US numbers, a consultation fee may apply).

Frequently asked questions

Can puppies eat mustard?

Because mustard needs extra caution for adult dogs, it is best to avoid it for puppies.

What if my dog ate too much mustard?

The most common result is an upset stomach with vomiting or diarrhea. Offer water, skip further treats, and call your vet if symptoms are severe or last more than a day, or if your dog ate any of the parts listed under "What to avoid".

Should mustard be a regular part of my dog's diet?

No. We recommend not making mustard a regular part of your dog's diet.

More questions dog owners ask

Wondering about the other pet in your home? Can Cats Eat Mustard?

Last updated September 2026. This page is general information and is not a substitute for advice from your veterinarian. Every dog is different, so check with your vet before adding new foods, especially if your dog has health problems, is pregnant, or is very young or old.