Can Dogs Eat Mushrooms?
Plain, store-bought mushrooms are generally considered fine for dogs to eat in small, cooked amounts. The primary danger comes from wild mushrooms, which can be highly toxic and even deadly if ingested.
Because it is very difficult to tell safe wild mushrooms from poisonous ones, the safest approach is to prevent your dog from eating any mushroom found outdoors. Only mushrooms purchased from a grocery store should be considered for your pet, and only when prepared correctly. This distinction is the most important factor in mushroom safety for dogs.
Mushrooms and dogs: the facts in one table
| Verdict | Only plain, small amounts, with care |
|---|---|
| How to offer it |
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| Remove or avoid |
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| Main risks |
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| Signs to watch |
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What makes mushrooms tricky for dogs
The greatest risk associated with mushrooms is the potential for poisoning from wild varieties. Many types of mushrooms that grow in yards, parks, or wooded areas are toxic to dogs. A major challenge is that poisonous mushrooms are often hard to tell apart from non-toxic ones, and mistakes can have severe consequences.
Even a small bite of a toxic wild mushroom can cause serious health problems. Ingesting one can lead to signs like vomiting, diarrhea, drooling, wobbliness, seizures, or yellowing of the skin and eyes. For this reason, it is safest to assume that any mushroom your dog finds growing outside is dangerous. Pet owners should be vigilant about clearing their yards of wild mushrooms and keeping dogs from eating them on walks.
How to offer mushrooms and what to leave out
If you choose to share mushrooms with your dog, they must be from a grocery store and served plain. Always wash them thoroughly and cook them without any added ingredients. Do not use butter, oil, or seasonings, as these can cause digestive upset.
It is especially important to avoid feeding your dog mushrooms that have been prepared with other foods that are harmful to them. Many mushroom dishes contain ingredients like garlic or onions, which are toxic to dogs. Always read ingredient labels on prepared foods. When introducing any new food, start with a very small amount to see how your dog reacts.
When you should skip mushrooms altogether
You should never allow your dog to eat a mushroom found outdoors. Whether it is growing in your yard or encountered on a trail, the risk of toxicity is too high. Do not attempt to identify the mushroom yourself.
Additionally, avoid giving your dog mushrooms from your plate. Human meals are often cooked with high-fat ingredients like butter or contain other components like garlic and onions that are unsafe for dogs. The best practice is to stick to plain, cooked, store-bought mushrooms offered as an occasional, small treat, or to simply not offer them at all.
When to call your vet
If your dog ate mushrooms, call your veterinarian or an animal poison control line right away, even if your dog seems fine. Note what was eaten, roughly how much and when, and keep any packaging.
If you suspect your dog has eaten a wild mushroom, treat it as an emergency. Contact your veterinarian or the ASPCA Animal Poison Control Center immediately for guidance. Note the time of ingestion and, if possible, keep any remaining part of the mushroom for identification purposes.
Emergency signs: go now
- Collapse, fainting or severe weakness
- Seizures, tremors or trouble standing
- Trouble breathing or blue, gray or very pale gums
- Repeated vomiting or retching, or a swollen, painful belly
- Any known contact with a substance listed as toxic, even before signs appear
Book an appointment soon
- Vomiting or diarrhea that lasts or keeps coming back
- Not eating or drinking, or drinking much more than usual
- Drooling, pawing at the mouth or a swollen face
- Lethargy, hiding or acting unlike themselves
ASPCA Animal Poison Control Center: (888) 426-4435 (a consultation fee may apply). Your own vet or nearest emergency clinic is always a good first call.
Sources
Last checked October 21, 2026. Listings and guidance can change; your veterinarian knows your pet’s health history.