| 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 |
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.
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 — it can do more damage than the poison. What we will and won't tell you.
Can cats eat wild mushrooms? — Toxic for cats.
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. 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.
Watch for: 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. Some signs lag by a day — call, don't wait.
There is no known safe amount — small quantities have caused serious harm, so treat any exposure as urgent and call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435.