Mustard
ToxicMustard seeds contain isothiocyanates causing gastroenteritis and vomiting.
Quick Answer: Is Mustard Toxic to Dogs or Cats?
Use this short answer first, then read symptoms and what to do next.
Is Mustard toxic to dogs?
Yes. Mustard is toxic to dogs and should be avoided. Contact a veterinarian if your pet ate it or has symptoms.
Is Mustard toxic to cats?
Yes. Mustard is toxic to cats and should be avoided. Contact a veterinarian if your pet ate it or has symptoms.
Symptoms to watch for
Vomiting, diarrhea, stomach pain
What should I do now?
Contact vet if significant ingestion.
Dogs
Unsafe
Cats
Unsafe
Risk level
Toxic
Symptoms
Vomiting, diarrhea, stomach pain
What to do now
Contact vet if significant ingestion.
Explore Related Safety Hubs
Use these hub pages for broader dog, cat, cleaner, and emergency planning guidance.
Dog Toxicity Guide
Compare Mustard with common dog food, plant, medication, and household toxicity risks.
Open hubCat poisoningCat Toxicity Guide
See cat-specific guidance for Mustard, plants, cleaners, foods, and medication risks.
Open hubEmergency planningVet Cost Hub
Plan for emergency exams, toxin ingestion care, hospitalization, and insurance decisions.
Open hubSymptoms to Watch For
Vomiting, diarrhea, stomach pain
What to Do
Contact vet if significant ingestion.
Plan ahead for emergency vet bills
Poisoning, broken bones, and emergency surgery can get expensive quickly. Compare costs and accident coverage before you need it.
Pet Poisoning Emergency Checklist
A one-page checklist for symptoms, product labels, emergency contacts, and what to bring to the clinic.
Clinical References
Quick Answers
Is Mustard poisonous to dogs?
Is Mustard toxic to cats?
What symptoms can Mustard cause in pets?
What should I do if my pet ate Mustard?
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