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Can cats eat scallions?
Last updated 2026-05-08 · Sourced from ASPCA & Merck Veterinary Manual
No — avoid
Same.
The short answer
No — avoid — cats should never eat scallions. NO Green onions.
Remember: cats are obligate carnivores. They derive almost all their nutrition from animal protein, so even "safe" plant foods are treats — not staples.
Why it's dangerous
Same.
Symptoms to watch for
Same.
What to do if your cat ate scallions
- Stay calm. Note how much was eaten and when.
- Call your vet or ASPCA Animal Poison Control at 888-426-4435.
- Or Pet Poison Helpline: 855-764-7661.
- Do not induce vomiting in cats unless instructed by a vet — it's risky.
- Bring product packaging to the vet visit.
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Kitten safety
Scallions is even more dangerous for kittens than adult cats. Their smaller body weight means the same amount delivers a much higher toxic dose per pound. Their developing organs are also less able to process and clear toxins. If your kitten ate any amount of scallions, contact your vet immediately — don't wait for symptoms.
What to do if your cat ate scallions
- Don't wait for symptoms. Some toxic effects start hours later but treatment is most effective when given early.
- Call your vet or an animal poison control hotline now:
- ASPCA Poison Control: (888) 426-4435 (fee may apply)
- Pet Poison Helpline: (855) 764-7661
- Have these details ready: your pet's weight, the amount eaten, when it happened, and any symptoms you've noticed.
- Don't induce vomiting unless the vet specifically tells you to. Inducing vomiting at home can cause aspiration in some cases.
- Save the packaging or a sample of what was eaten — this helps the vet identify ingredients.
Safer alternatives to scallions
Looking for a safe treat? Here are vet-approved alternatives cats can enjoy instead:
Frequently asked questions
Is scallions toxic to cats?
Yes — Same.
How much scallions is too much?
Any amount can be dangerous. Even small ingestions warrant a call to your veterinarian.
Can kittens eat scallions?
No — and even more dangerous than for adults due to lower body weight. Contact your vet immediately if a kitten eats any amount.
What are the symptoms of scallions poisoning in cats?
Same.
What should I do if my cat ate scallions?
Call ASPCA Poison Control at (888) 426-4435 or your veterinarian immediately. Don't wait for symptoms.
Frequently asked questions
Can cats eat scallions?
No — avoid. Same.
What happens if a cat eats scallions?
Same.
Is scallions toxic to cats?
Yes — scallions is toxic to cats. Same.