Updated 2026-08-07 · Source: VCA Animal Hospitals — pet health library · Free · No sign-up
Not toxic, but be careful — pumpkin seeds aren't poisonous to cats, and they come with caveats that matter.
If your cat may have eaten something harmful — or any part of a lily — call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 right now — don't wait for symptoms. A consultation fee may apply to the ASPCA hotline.
Verdict for cats
Caution
Severity
2 / 5 — Mild — usually stomach upset; watch them.
Safe amount
A taste at most
Category
Nuts
Source
VCA Animal Hospitals — pet health library · reviewed 2026-08-07 · confidence: medium
Why
Plain shelled seeds are not toxic to cats but offer nothing, and are a choking size. Skip them.
Signs to watch for if your cat has eaten pumpkin seeds
Most pets are fine after a small amount
Vomiting, loose stools or a skipped meal if they had a lot
Any new food can upset a sensitive stomach — introduce it in a small amount
Signs vary with the amount and with the individual pet, and some appear only after a day or more. Their absence does not mean your cat is in the clear — call rather than watch.
What to do now
Don't make it a habit. Watch for vomiting, diarrhea or a lost appetite over the next day and call your vet if it doesn't settle or your cat seems unwell.
Never induce vomiting and never give any medicine unless a vet tells you to. With some substances it causes more damage than the poison. This page tells you when to get help — it never tells you how to treat at home.
Safer treats made for cats
If you're sharing food because you want to treat them, a treat formulated for cats does the job without the guesswork.
Verdicts are transcribed from the cited veterinary sources, never inferred. Where a source establishes a finding for one species only, the other species is left null and the page says to ask your vet — a dog finding is never copied onto a cat.
This page is a reference, not veterinary advice or a diagnosis. CanMyPetEat is a reference, not veterinary advice or a diagnosis. It tells you when to get help — never how to treat at home. Never induce vomiting or give any medicine unless a vet tells you to. Individual pets vary and toxicity guidance changes; your vet and the ASPCA Animal Poison Control Center are the authority.
Not toxic, but be careful — pumpkin seeds aren't poisonous to cats, and they come with caveats that matter. Plain shelled seeds are not toxic to cats but offer nothing, and are a choking size. Skip them.
What happens if a cat eats pumpkin seeds?
Watch for: Most pets are fine after a small amount; Vomiting, loose stools or a skipped meal if they had a lot; Any new food can upset a sensitive stomach — introduce it in a small amount. Signs can take hours or, for some poisons, a day or more to appear, so call your vet rather than waiting to see.
How many pumpkin seeds are dangerous for a cat?
The safe amount is a taste at most, as an occasional treat rather than a daily habit. Large amounts mainly cause stomach upset; if that doesn't settle within a day, call your vet.