Can Dogs Eat Mushrooms? Safe Types and Dangerous Varieties

The Short Answer

I’ll be honest — this one makes me nervous to write about. When Cooper was about two, he snapped up a mushroom growing in our backyard before I could stop him. The frantic call to our vet (at 9pm on a Saturday, naturally) taught me more about mushroom toxicity than I ever wanted to know. Thankfully, it turned out to be a harmless lawn mushroom, but those 45 minutes of waiting were some of the longest of my life.

Which Mushrooms Are Safe for Dogs?

The mushrooms you find at your local grocery store are safe for dogs when served plain and cooked:

• White button mushrooms — the most common variety, mild flavor
• Cremini mushrooms — a more mature version of white buttons
• Portobello mushrooms — large, meaty, and nutritious
• Shiitake mushrooms — cooked only, never raw
• Maitake mushrooms — also known as hen of the woods

These mushrooms offer some solid nutritional benefits for your dog. They’re packed with B vitamins (riboflavin, niacin), contain selenium for immune support, and provide antioxidants that help fight cellular damage. They’re also very low in calories, making them a guilt-free addition to your dog’s bowl.

The Dangerous Wild Mushroom Problem

Here’s where things get serious. There are roughly 100 species of wild mushrooms that are toxic to dogs, and some of the deadliest ones look remarkably similar to harmless varieties. The most dangerous include:

• Amanita phalloides (Death Cap) — responsible for the majority of fatal mushroom poisonings worldwide. Can cause complete liver failure.
• Amanita muscaria (Fly Agaric) — the red-capped mushroom from fairy tales. Causes neurological symptoms, seizures, and coma.
• Galerina marginata (Deadly Galerina) — small, brown, and easily mistaken for edible species. Contains the same toxins as Death Caps.
• Inocybe and Clitocybe species — contain muscarine, which causes excessive salivation, tear production, and potentially fatal respiratory failure.

Symptoms of Mushroom Poisoning in Dogs

Symptoms vary depending on the species, but watch for these signs within 15 minutes to 12 hours after ingestion:

• Vomiting and diarrhea (often severe)
• Excessive drooling or salivation
• Lethargy or weakness
• Wobbling, loss of coordination, or staggering
• Seizures or tremors
• Jaundice (yellowing of eyes, gums, or skin) — indicates liver damage
• Abdominal pain or bloating

Some of the most dangerous mushrooms have a cruel trick: dogs may appear to recover after initial vomiting, only for catastrophic organ damage to show up 24-72 hours later. This is why you should always go to the vet, even if your dog seems fine after vomiting.

What to Do If Your Dog Eats a Wild Mushroom

1. Stay calm (easier said than done, I know).
2. Try to collect a sample of the mushroom. Wrap it in a damp paper towel and put it in a paper bag. Your vet or a mycologist may be able to identify it.
3. Take a photo of the mushroom and the area where it was growing.
4. Call your vet or the ASPCA Animal Poison Control Center (888-426-4435) immediately.
5. Do NOT induce vomiting unless specifically instructed by your veterinarian.
6. Get to an emergency vet as quickly as possible.

How to Serve Safe Mushrooms to Your Dog

If you want to share some store-bought mushrooms with your pup, here’s the best approach:

• Always cook them. Raw mushrooms are harder for dogs to digest. Lightly sauté or steam without oil, butter, or seasonings.
• Chop them small. Large pieces can be a choking hazard, especially for smaller dogs.
• Keep it plain. No garlic, no onions, no sauces. These are toxic to dogs and commonly paired with mushrooms in human recipes.
• Start small. A few small pieces to see how your dog’s stomach handles them before offering more.

Preventing Mushroom Encounters

The best way to handle wild mushroom risk is prevention:

• Regularly check your yard after rain (mushrooms pop up fast in warm, wet conditions)
• Remove any wild mushrooms from your lawn and garden immediately
• Keep your dog on leash in wooded areas where mushrooms are common
• Teach a strong “leave it” command — it could genuinely save your dog’s life

Related Reading

For a comprehensive look at foods that are dangerous for dogs, check out our complete list of toxic foods for dogs. You might also want to browse our guide to human foods that are safe for dogs so you know exactly what’s okay to share from your plate.

If your dog loves vegetables, they might enjoy carrots or green beans as safer alternatives to mushrooms.