Can dogs eat wild mushrooms?

Updated 2026-08-07 · Source: Merck Veterinary Manual; Pet Poison Helpline · Free · No sign-up

No — wild mushrooms are toxic to dogs, even in small amounts. Call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 now.

If your dog may have eaten something harmful, 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 dogs	Toxic
Severity	5 / 5 — Emergency — can be fatal, and small amounts can matter. Call now.
Safe amount	None
Category	Vegetable
Source	Merck Veterinary Manual; Pet Poison Helpline · reviewed 2026-08-07 · confidence: high

Why

Some wild mushrooms are deadly and they cannot be told apart from harmless ones by eye — not by you, not by us. Depending on species they cause severe stomach upset, tremors and seizures, or liver failure that shows up a day or two later. Treat any wild mushroom your dog ate as an emergency and, if you safely can, photograph or bag one for the vet.

Signs to watch for if your dog has eaten wild mushrooms

Vomiting and diarrhea
Muscle tremors or twitching
Wobbliness, agitation or disorientation
Seizures
Yellow gums or eyes if the liver is affected, sometimes a day or two later

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 dog is in the clear — call rather than watch.

What to do now

Call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 straight away. Tell them what your dog ate, roughly how much, and when, and take the packaging with you. Don't wait for symptoms — with several poisons the harm is done before a pet looks ill.

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 alternatives for dogs

Plain baby carrots or carrot sticks
Plain cooked chicken breast — no skin, no bones, no seasoning
A few blueberries or a slice of apple with the core removed
Plain canned pumpkin (not pie filling)
Plain green beans, fresh or frozen

What about cats?

Can cats eat wild mushrooms? — Toxic for cats.

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.