🧅
Can Dogs Eat Leeks?
Verdict
Toxic — do not feed
Why it is toxic
Leeks contain N-propyl disulfide and thiosulfates, the same compounds that make onion and garlic toxic to dogs. These damage red blood cells and can cause haemolytic anaemia. Cooking, drying, or powdering does not remove the risk. Small one-off nibbles rarely cause emergencies but there is no safe intentional serving size.
Safe portion
None — do not feed leeks in any form.
Symptoms to watch for
Vomiting, diarrhoea, lethargy, pale gums, rapid breathing, dark or reddish urine. Symptoms can appear 1–3 days after ingestion.
Leeks for dogs at a glance
| Verdict | Toxic — do not feed |
|---|---|
| How much | None — do not feed leeks in any form. |
| If your dog eats it | Call your vet now (UK: Animal PoisonLine, 01202 509000). Don't wait for symptoms. |
Always consult your vet. If your dog has eaten something you're worried about — or shows any unusual symptoms — call your veterinarian immediately. In the UK, pet owners can also call Animal PoisonLine (run by the Veterinary Poisons Information Service) on 01202 509000, a 24-hour paid triage service. This page is editorial guidance, not emergency advice for an individual animal.
Frequently asked questions
Related foods
See also
Get one plain-English dog nutrition email a month
New safe-food checks, feeding guides and seasonal hazards. No ads, no affiliate links.