Can Cats Eat Leek?
Food-safety reference.
Short answer
No, leek is toxic to cats.
According to the ASPCA Animal Poison Control Center, which names this food among those dangerous to pets, our cat rating is toxic. Portion guidance: None. Watch for: Anemia, vomiting. The same food is rated toxic for dogs; feline metabolism often differs, so do not transfer the dog rating. Ask your veterinarian about your own animal.
No. Leek is toxic to cats.
Food-safety rating slip
Cats can-eat rating TOXIC Leek
TOXIC · Vegetables · 20% cat-haz
- LEVEL toxic
- DOG toxic
- SHARE 20% haz
- RISK 1 risk
- BEN 0 benefits
- SYMP listed
- SRC ASPCA Animal Po…
- PHOTO Asparagus
Category photo peer: Asparagus (caution)
Cat rating for leek is toxic. Dogs: toxic. Vegetables neighbourhood compares 6 foods by hazard band. Band scores are ordinal (toxic=4 → safe=1), not clinical doses. Read with this food →
Category standing
Toxic on both the cat and dog charts
Cats and dogs share a toxic rating for Leek. Inside vegetables, 4 of 25 cat ratings are toxic. this is a household-wide keep-away, not a species-specific quirk.
Source for this food: ASPCA Animal Poison Control Center, which names it among the foods dangerous to pets. Portion, preparation and symptom detail on this page is our own editorial guidance.
Portion & Preparation
- Recommended Portion
- None
Risks & Warnings
- ⚠ Same thiosulfates, cats more sensitive
Warning Signs
Anemia, vomiting
If your cat shows these symptoms, contact your vet or call ASPCA Poison Control: 888-426-4435
🚨 Pet Poison Emergency
ASPCA Animal Poison Control
888-426-4435
24/7, consultation fee may apply
Other Vegetables for Cats
Read our methodology - how this data is sourced, computed, and verified.
PlainPetFood publishes an editorial food-safety compilation. When the FDA or ASPCA Animal Poison Control Center names a food as dangerous, that food's page links the source; other ratings are identified as editorial guidance. Its cat rating, portion, preparation notes and warning signs are rendered from the food-safety archive; a named FDA or ASPCA source is linked above when that authority names this food. See our editorial standards & corrections policy, report a correction, the methodology behind these numbers, or contact the editorial team. Data current as of August 29, 2026.