Can dogs eat leek? No — why, and what to do
Quick answer: No — leek is not safe for dogs and should never be given.
Quick verdict
Unsafe
Key risk
Can damage red blood cells and cause anaemia.
Why
Leeks belong to the onion family and are toxic to dogs.
Can dogs eat leek, and why?
Leeks belong to the onion family and are toxic to dogs. Can damage red blood cells and cause anaemia.
Dogs are omnivores, so most of their diet should be a complete, balanced dog food, with treats on top. They cope with a wide range of foods, but rich, fatty or sugary ones can cause stomach upset and, over time, weight gain or pancreatitis.
Warning — what to watch for
Can damage red blood cells and cause anaemia.
If your dog has eaten leek, don’t wait for symptoms — contact your vet immediately, or call the Animal PoisonLine on 01202 509000 (24/7, UK). Signs of a problem can include vomiting, diarrhoea, drooling, lethargy, tremors or loss of appetite.
🚨 Find an emergency vet near youMore foods dogs might eat
Keep leek out of reach
If your dog has eaten leek, ring your vet — do not wait to see what happens. For preventing a repeat:
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Feeding & nutrition guides
Frequently asked questions
Can dogs eat leek?
Unsafe. Leeks belong to the onion family and are toxic to dogs.
What happens if my dog eats leek?
Can damage red blood cells and cause anaemia. If your dog has eaten leek, contact your vet or the Animal PoisonLine (01202 509000) straight away — don’t wait for symptoms.
Is leek poisonous to dogs?
Unsafe. Leeks belong to the onion family and are toxic to dogs.
Free printable: safe & toxic foods for dogs
leek is just one food — get the full one-page checklist of what’s safe, fine in moderation, or dangerous for dogs. Vet-sourced, yours to print and keep.
Check leek for another pet
Sources
Our verdict on whether dogs can eat leek draws on established UK and US veterinary and welfare organisations. Individual pets, quantities and preparation vary — always confirm with your own vet.