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Can dogs and cats eat watercress?

Short answer on watercress: toxic for both dogs and cats. See what to watch for and the veterinary sources behind each answer.

One food, two pets

What changes between dogs and cats?

Dogs and cats both have a toxic verdict.

Dogs and cats get the same answer here. Each column below lists its own signs to watch and sources.

    Toxic

    Watercress safety for dogs

    The ASPCA lists watercress as toxic to dogs because it contains gastrointestinal irritants. Contact your veterinarian or ASPCA Animal Poison Control at (888) 426-4435 after an exposure.

    Toxic principle: Gastrointestinal irritants

    Watch for

    • Vomiting
    • Diarrhea

    Sources

    Reviewed 2026-07-19

    Toxic

    Watercress safety for cats

    The ASPCA lists watercress as toxic to cats because it contains gastrointestinal irritants. Contact your veterinarian or ASPCA Animal Poison Control at (888) 426-4435 after an exposure.

    Toxic principle: Gastrointestinal irritants

    Watch for

    • Vomiting
    • Diarrhea

    Sources

    Reviewed 2026-07-19

    Questions owners ask about watercress

    Can dogs eat watercress?

    The ASPCA lists watercress as toxic to dogs because it contains gastrointestinal irritants. Contact your veterinarian or ASPCA Animal Poison Control at (888) 426-4435 after an exposure.

    What should I do if my dog ate watercress?

    Contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 immediately. Do not wait for symptoms to appear before calling.

    What symptoms should I watch for with watercress and dogs?

    Vomiting, Diarrhea. If you notice any of these, contact your veterinarian.

    Can cats eat watercress?

    The ASPCA lists watercress as toxic to cats because it contains gastrointestinal irritants. Contact your veterinarian or ASPCA Animal Poison Control at (888) 426-4435 after an exposure.

    What should I do if my cat ate watercress?

    Contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 immediately. Do not wait for symptoms to appear before calling.

    What symptoms should I watch for with watercress and cats?

    Vomiting, Diarrhea. If you notice any of these, contact your veterinarian.

    This page is for informational purposes only and is not veterinary advice. Always consult your veterinarian about your pet's diet and health.

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    Read our methodology for how every verdict is sourced and reviewed.