Can they eat it? / Mushrooms
Can dogs and cats eat mushrooms?
Store-bought plain mushrooms are fine; wild mushrooms can be deadly.
Button, cremini and portobello from the store, cooked plain, are safe in small amounts. Any mushroom from the yard or a walk is an emergency until identified; some cause liver failure a day later.
Wild: vomiting, diarrhea, drooling, wobbling, yellow gums, seizures, sometimes hours after.
Wild mushroom eaten: go to a vet now and bring a sample of the mushroom in a paper bag.
Careful for dogs means: fine in a small amount, prepared as described, and not for every pet; the details say when to skip it.
General information from veterinary guidance, not a diagnosis. If you are worried, call your vet or a pet poison line: ASPCA Animal Poison Control (888) 426-4435. Charges may apply.