Can Dogs Eat Leeks?
Why it’s a problem
Leeks contain the same N-propyl disulfide-type compounds as onions, which destroy red blood cells and cause hemolytic anemia. They taste milder but are not safer, and concentrated forms like leek-and-potato soup or quiche are the classic exposures.
How to serve it safely
Keep leeks, leek soup, quiche and stock made with leeks away from dogs. Check ingredient labels on soups and broths.
Warning signs to watch for
Lethargy, weakness, pale gums, red or brown urine, rapid breathing and collapse — anemia can appear days after eating leeks.
When to call the vet
Call your vet as soon as you know leeks were eaten, even without symptoms — early treatment prevents the worst outcomes.
Common questions
Are leeks weaker than onions for dogs?
They taste milder but are not safer — allium toxicity applies across the family, and doses add up over meals.
My dog ate leek-and-potato soup — now what?
Call your vet with the amount and timing. The potato is fine, but the leek and any onion in the recipe are the emergency.
More foods for dogs
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away.