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If your cat ate purple choy sum — do this now

  1. Take the plant away and clear any pieces from their mouth.
  2. Do not induce vomiting unless told to by a professional.
  3. Call your vet now. If you cannot reach one, a poison-control line will triage you — ASPCA Animal Poison Control Center on (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK. Both services charge a fee.

Purple Choy Sum is mildly toxic to cats (ASPCA).

Pet emergency

My cat ate Purple Choy Sum — what to do

Step by step

  1. Take purple choy sum away and remove any plant material from your cat's mouth so they cannot eat more.
  2. Note roughly how much was eaten and when — this helps the vet judge the risk.
  3. Do NOT induce vomiting unless a vet or poison-control specialist tells you to.
  4. Call your vet, or a poison-control line — (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK. Both charge a consultation fee. Follow their advice.
  5. Watch for drooling, pawing at the mouth, vomiting, loss of appetite, or lethargy, and bring a leaf or photo to the appointment.

This is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide as well as the plant. When in doubt, call your vet — or the ASPCA Animal Poison Control Center on (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK.

My cat ate purple choy sum — FAQ

Is purple choy sum poisonous to cats?

Yes — the ASPCA lists Purple Choy Sum (Brassica rapa var. parachinensis 'Purple') as mildly toxic to cats. ASPCA lists cultivated Brassica/Indian Mustard species as toxic to horses (toxic principle: isothiocyanates; signs include GI irritation and colic). Cats and dogs are not flagged as toxic on that entry and tolerate small cooked amounts, but isothiocyanates and oxalates can cause stomach upset, with thiocyanate risk from large repeated quantities, especially in cats. Keep away from horses; check with a vet if a pet is unwell.

How serious is it if my cat ate purple choy sum?

Purple Choy Sum is mildly toxic, so most cats get short-lived mouth irritation, drooling, and vomiting rather than a life-threatening reaction. It is still worth a vet call to be safe, especially if your cat ate a lot or symptoms persist.

What symptoms should I watch for?

Signs usually appear soon after chewing: drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy. ASPCA lists cultivated Brassica/Indian Mustard species as toxic to horses (toxic principle: isothiocyanates; signs include GI irritation and colic). Cats and dogs are not flagged as toxic on that entry and tolerate small cooked amounts, but isothiocyanates and oxalates can cause stomach upset, with thiocyanate risk from large repeated quantities, especially in cats. Keep away from horses; check with a vet if a pet is unwell. Any worsening or persistent symptoms warrant an immediate vet visit.

Should I make my cat vomit?

No — do not induce vomiting unless a vet or a poison-control specialist specifically tells you to. The wrong action can make things worse. Call your vet, or (888) 426-4435 in the US, or Animal PoisonLine on 01202 509 000 in the UK, and follow professional advice.

How do I stop this happening again?

Keep purple choy sum well out of reach, or swap it for an ASPCA non-toxic plant — see the best cats-safe plants list.

Type any plant to see what the ASPCA says about it and your cat.

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