Are Leeks Toxic to Horses?
Yes — leeks are toxic to horses.
PawSafe Check is for general information only and is not veterinary advice. Always contact your veterinarian or a poison control service if you think your pet has been exposed.
Symptoms to watch for
- Vomiting
- Diarrhea
- Weakness or low energy
- Pale gums
- Fast breathing or heart rate
- Red or brown urine (anemia can appear several days later)
Toxic parts
All parts
Toxic compound
Organosulfur compounds
What to do now
- Call your vet or a pet poison control line immediately — don't wait for symptoms.
- Do not induce vomiting unless a vet tells you to.
- Bring the plant, label or packaging with you so the vet knows exactly what your horse ate.
- Note roughly how much was eaten and when.
Good to know
Leeks are in the onion family and can cause red blood cell damage.
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Frequently asked questions
Can horses eat leeks?
No. Yes — leeks are toxic to horses.
Are leeks toxic to horses?
Yes — leeks are toxic to horses. Leeks are in the onion family and can cause red blood cell damage.
What are the symptoms of leeks poisoning in horses?
Vomiting. Diarrhea. Weakness or low energy. Pale gums. Fast breathing or heart rate. Red or brown urine (anemia can appear several days later).
What should I do if my horse ate leeks?
Call your vet or a pet poison control line immediately — don't wait for symptoms. Do not induce vomiting unless a vet tells you to. Bring the plant, label or packaging with you so the vet knows exactly what your horse ate. Note roughly how much was eaten and when.
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