Is Chives & Leeks Toxic to Cats and Dogs?
Chives and leeks are severely toxic to cats and moderately toxic to dogs — like onion and garlic, they destroy red blood cells. Cats are especially sensitive.
Potentially life-threatening — treat any exposure as an emergency.
Can cause real harm — call a vet for guidance.
In an emergency, do not wait.
Medical disclaimer: This tool is for general information only and isnot a substitute for veterinary diagnosis or treatment. Toxicity depends on the amount, your pet’s size, and health history. If your pet may have ingested something harmful, contact your veterinarian or a poison control hotline ((888) 426-4435 / (855) 764-7661) immediately — do not wait for symptoms to appear.
What is Chives & Leeks?
Chives and leeks are severely toxic to cats and moderately toxic to dogs — like onion and garlic, they destroy red blood cells. Cats are especially sensitive.
Also known as: chive, leek, allium, scallion, spring onion.
Symptoms to Watch For
🐈 In Cats
- Red blood cell destruction (cats are highly sensitive to alliums)
- Vomiting, drooling, and reduced appetite
- Weakness and pale gums
- Dark or red-tinged urine
🐕 In Dogs
- Red blood cell destruction (anemia)
- Vomiting, diarrhea, and drooling
- Weakness and pale gums
- Dark or red-tinged urine
What to Do If Ingested
- Remove any remaining chives or leeks.
- Note the amount eaten.
- Call a veterinarian or poison hotline.
Steps apply to both cats and dogs. When in doubt, call a vet or poison hotline before acting.
When to Call the Vet Immediately
Call your veterinarian or a poison control hotline right away if you notice any of these:
- A larger amount was eaten
- Weakness, pale gums, or lethargy
- Dark or red urine
Frequently Asked Questions
Frequently Asked Questions
Are chives as dangerous as onion and garlic?
Chives, leeks, scallions, and spring onions are all part of the Allium family and contain the same red-blood-cell-damaging compounds as onion and garlic. Cats are especially sensitive, so even small amounts warrant a vet call.
Can the damage build up over time?
Yes. Allium toxicity can accumulate from repeated small exposures, not just one large meal. If your cat regularly nibbles chives from the garden, the anemia can develop gradually. Remove access and consult a vet.
What signs should I watch for?
Weakness, lethargy, pale gums, reduced appetite, and dark or red-tinged urine — all signs of anemia from red blood cell destruction. These may appear a few days after ingestion. Call a vet if you see them.
Sources
This entry is reviewed against the following authoritative veterinary sources.
Last reviewed: 2026-07-11