Can dogs eat leek?
Last reviewed June 2026 · Sourced from ASPCA & Merck Veterinary Manual
The short answer
No — avoid — dogs should never eat leek. allium family Onion family vegetable.
Why it's dangerous
Same as onion/garlic toxicity.
Symptoms to watch for
Hemolytic anemia.
What every dog owner should know
- All allium = NO
What to do if your dog ate leek
Stay calm, note how much was eaten, and contact your vet immediately. For urgent help, the ASPCA Animal Poison Control hotline is 888-426-4435. See our full step-by-step guide: Dog ate something toxic — what to do.
allium family
Puppy safety
Leek is even more dangerous for puppies than adult dogs. Their smaller body weight means the same amount delivers a much higher toxic dose per pound. Their developing organs are also less able to process and clear toxins. If your puppy ate any amount of leek, contact your vet immediately — don't wait for symptoms.
What to do if your dog ate leek
- Don't wait for symptoms. Some toxic effects start hours later but treatment is most effective when given early.
- Call your vet or an animal poison control hotline now:
- ASPCA Poison Control: (888) 426-4435 (fee may apply)
- Pet Poison Helpline: (855) 764-7661
- Have these details ready: your pet's weight, the amount eaten, when it happened, and any symptoms you've noticed.
- Don't induce vomiting unless the vet specifically tells you to. Inducing vomiting at home can cause aspiration in some cases.
- Save the packaging or a sample of what was eaten — this helps the vet identify ingredients.
Safer alternatives to leek
Looking for a safe treat? Here are vet-approved alternatives dogs can enjoy instead: