Can Dogs Eat Mushrooms? Everything You Need To Know.
Wondering if mushrooms are safe for your dog? Plain, cooked, store-bought mushrooms are fine in moderation, but wild mushrooms can be fatal. Here is the vet-reviewed guide to safe types, serving sizes, and poisoning symptoms.
Veterinarian · BVMS, MRCVS
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- 1Plain, cooked grocery-store mushrooms (white button, cremini, portobello, shiitake, oyster) are non-toxic to dogs and safe as an occasional treat.
- 2Wild mushrooms are the real danger. Dogs and owners cannot reliably tell toxic from safe, so treat any wild ingestion as a potential emergency.
- 3Skip all seasonings. Garlic, onions, butter, oil, and salt are the actual hazard in most cooked mushroom dishes.
- 4Watch for vomiting, drooling, weakness, tremors, or yellow gums. Symptoms can be delayed 6 to 24 hours with the deadliest species.
- 5If your dog eats a wild or unknown mushroom, call your vet or ASPCA Animal Poison Control at 888-426-4435 right away. Do not wait for symptoms.
Can dogs eat mushrooms? Yes, dogs can safely eat plain, cooked, store-bought mushrooms like white button, cremini, portobello, and shiitake, according to the AKC and ASPCA. Always skip seasonings such as garlic, onions, butter, and salt. Never let a dog eat wild mushrooms, which can be highly toxic or fatal.
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Are Mushrooms Safe for Dogs?
Store-bought, edible mushrooms are safe for dogs in their plain, cooked form. The mushrooms sold at the grocery store (white button, cremini, portobello, shiitake, and oyster) are the same species considered safe for people, and the ASPCA does not classify them as toxic to dogs. The catch is that mushrooms are not a nutritional necessity for dogs, so they should be an occasional treat rather than a daily addition.
The danger almost never comes from the mushroom itself. It comes from how mushrooms are usually prepared (sauteed in butter and oil, or seasoned with garlic and onions) and from wild mushrooms found in yards and on walks. As with any new food, mushrooms work best as a small, plain extra alongside a complete diet. If you are building out a list of dog-friendly produce, our guide to the best vegetables for dogs covers safer everyday picks like carrots and green beans.
- Never let your dog eat a mushroom growing outdoors. Even experienced foragers struggle to tell deadly species from harmless ones, and some of the most toxic mushrooms look ordinary. If you cannot say with 100 percent certainty that a mushroom is a plain store-bought variety, treat it as dangerous.
Can Dogs Eat Cooked Mushrooms?
Yes, plain cooked mushrooms are the best way to serve mushrooms to a dog. Cooking softens the tough cell walls (mushrooms contain chitin, which dogs digest poorly), making the mushroom easier on the stomach and the nutrients more available. The key word is plain. That means dry-sauteed, steamed, or boiled with no butter, oil, salt, garlic, or onion.
Cooked-vs-raw is the single biggest question owners ask, and the answer is clear. Cooked, unseasoned mushrooms beat raw ones for both digestibility and safety. If you are adding a small amount of mushroom to your dog's bowl, cook it first and let it cool before serving.
Can Dogs Eat Raw Mushrooms?
Dogs can technically eat small amounts of raw, plain, store-bought mushrooms (including raw white mushrooms) without poisoning risk, but raw mushrooms are harder to digest and more likely to cause gas or an upset stomach. There is no real benefit to feeding them raw. If your dog snags a slice of raw white button or cremini off the cutting board, it is not an emergency, but cooked is always the better choice.
Can Dogs Eat Fried, Sauteed, or Breaded Mushrooms?
No. Fried, sauteed, and breaded mushrooms are the worst way to serve them. The mushroom may be safe, but the butter, oil, breading, and salt are not. High-fat preparations can trigger stomach upset and, in some dogs, pancreatitis in dogs, a painful and potentially serious inflammation of the pancreas. Skip anything fried, battered, or cooked in fat.
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Mushrooms Cooked With Onions, Garlic, or Other Ingredients
This is where most accidental mushroom problems start. The mushroom is rarely the issue. The ingredients cooked alongside it are. Onions and garlic (both members of the Allium family) are toxic to dogs in any form (raw, cooked, or powdered) and can damage red blood cells, leading to a type of anemia. That risk applies to mushrooms and onions, cooked mushrooms and onions, and any dish that combines the two.
Cream of mushroom soup, mushroom gravy, mushroom risotto, and mushroom-topped pizza all typically contain onion or garlic, plus heavy salt and fat. None of these are safe to share.
Can Dogs Eat Mushroom Soup or Mushroom Gravy?
No. Canned and homemade cream of mushroom soup and mushroom gravy are loaded with sodium, fat, and almost always onion or garlic. A few licks are unlikely to cause an emergency, but these are not foods to offer on purpose, and a large amount warrants a call to your vet.
Can Dogs Eat Mushrooms on Pizza?
The cooked mushroom on a pizza is not toxic, but the pizza around it (cheese, salty crust, garlic, and often onion in the sauce) is a poor choice for dogs. If your dog ate a mushroom from a slice of pizza, watch for stomach upset, but the bigger concern is the garlic and salt, not the mushroom.
Can Dogs Eat Canned Mushrooms?
Plain canned mushrooms are not toxic, but they are usually packed in salty brine. The high sodium is the problem. If you want to share mushrooms, fresh ones that you cook plain are a far better option than canned.
What Mushrooms Can Dogs Eat? Safe Store-Bought Varieties
All of the common culinary mushrooms sold in grocery stores are safe for dogs when served plain and cooked. They differ mostly in flavor and texture, not in safety. Here is the rundown of the varieties owners ask about most.
Can Dogs Eat Portobello Mushrooms? (Plus Baby Bella and Cremini)
Yes. Portobello, baby bella (also spelled portabella), cremini, and crimini mushrooms are all the same species (Agaricus bisporus) at different stages of maturity, the same fungus as the white button mushroom. They are all safe for dogs when cooked plain. Portobello is simply the fully mature, larger version, and brown or bella mushrooms are the younger cremini.
Can Dogs Eat White and Button Mushrooms?
Yes. White mushrooms, white button mushrooms, and button mushrooms (again, all Agaricus bisporus) are the most common and one of the safest choices for dogs. Serve them cooked and plain, in small pieces.
Can Dogs Eat Shiitake, Oyster, and Enoki Mushrooms?
Yes to all three. Shiitake, oyster, king oyster, and enoki mushrooms are edible culinary varieties that are non-toxic to dogs when cooked plain. Their firmer textures make small, well-cooked pieces especially important to reduce any choking risk in small dogs.
Can Dogs Eat Morel, Chanterelle, and Wood Ear Mushrooms?
Store-bought, properly identified morel, chanterelle, and wood ear mushrooms are not toxic to dogs when cooked plain. The serious caution here is foraged ones. True morels have several toxic look-alikes (the false morel, Gyromitra esculenta, is poisonous), so only ever feed commercially sold, correctly identified versions, and only cooked.
Can Dogs Eat Truffles or Puffball Mushrooms?
Culinary truffles (the gourmet fungus) are not toxic to dogs, though they are an expensive and unnecessary treat. Puffball mushrooms are a different story. While some are edible, immature puffballs are easily confused with deadly Amanita buttons, so do not let a dog eat a puffball found in the yard.
How Much Mushroom Can Dogs Eat?
Mushrooms should follow the 10 percent rule: all treats and extras combined should make up no more than 10 percent of your dog's daily calories. Because mushrooms add little your dog cannot get from a complete diet, a few small cooked pieces a couple of times a week is plenty. Start with a tiny amount the first time to make sure your dog tolerates it, and always introduce new foods one at a time.
Use the chart below as a starting point, then adjust down for less active dogs and check with your vet if your dog has a sensitive stomach or a health condition. The same moderation logic applies to other dog-safe produce like can dogs eat broccoli and can dogs eat carrots.
- Wash thoroughly, slice into small bite-size pieces, and cook plain (dry-sauteed, steamed, or boiled). Skip all oil, butter, salt, garlic, and onion. Let cool, then offer a small amount as a topper or treat, not a meal replacement.
| Dog Size | Safe Serving (Plain, Cooked) | Safe Store-Bought Types | Never Feed |
|---|---|---|---|
| Small (under 20 lbs) | 1 to 2 small pieces, 1 to 2 times a week | White button, cremini, baby bella | Wild mushrooms, any seasoned dish |
| Medium (20 to 50 lbs) | 2 to 3 small pieces, 1 to 2 times a week | Portobello, shiitake, oyster | Garlic or onion mushrooms, fried mushrooms |
| Large (50 to 90 lbs) | 3 to 4 small pieces, 1 to 2 times a week | Enoki, chanterelle (store-bought) | Mushroom soup, gravy, canned (salty) |
| Giant (over 90 lbs) | A small handful of pieces, 1 to 2 times a week | Any plain culinary variety | Magic mushrooms, raw foraged mushrooms |
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Which Wild Mushrooms Are Toxic to Dogs?
Wild mushrooms are the reason this topic is a serious one. Many of the most dangerous species are not exotic or obvious. They grow in ordinary lawns, parks, and wooded trails, and they can be mistaken for harmless mushrooms even by experts. The safest approach is simple: assume every wild mushroom is toxic until a mycologist proves otherwise, and keep your dog away from all of them. For a broader look at household and outdoor hazards, see our roundup of foods that can harm your dog.
These are the toxic groups most often cited by veterinary toxicologists. They are grouped by the type of harm they cause, because that affects how poisoning looks and how fast it appears.
- Liver-destroying (amatoxin) species: Amanita phalloides (death cap), Amanita ocreata and Amanita bisporigera (destroying angels), and Galerina marginata (deadly galerina). These cause fatal liver failure and are the deadliest group.
- Neurotoxic (isoxazole) species: Amanita muscaria (fly agaric) and Amanita pantherina (panther cap), which cause sedation, agitation, a drunken or wobbly gait, and seizures.
- Muscarinic (SLUDGE) species: Inocybe species and Clitocybe dealbata (ivory funnel), which cause heavy drooling, tearing, urination, diarrhea, and vomiting.
- False morels: Gyromitra esculenta, which causes vomiting, diarrhea, and neurological signs and is dangerously easy to confuse with true morels.
- Amanita phalloides (death cap) poisoning has a delayed, deceptive course. A dog may seem to recover after the first wave of vomiting and diarrhea, then crash into liver failure 1 to 2 days later. Never assume your dog is in the clear just because early symptoms eased. With any suspected wild-mushroom ingestion, get veterinary help immediately and do not wait for symptoms to return.
What Are the Signs of Mushroom Poisoning in Dogs?
Symptoms of mushroom poisoning depend on the species and the toxin, and timing varies widely. Muscarinic and gastrointestinal toxins can cause signs within 15 minutes to 6 hours, while the deadliest amatoxin species (death cap) can be deceptively delayed 6 to 24 hours or more, often with a false-recovery window before the liver begins to fail. Because of that delay, you should never use the absence of early symptoms as reassurance.
Call your vet right away if your dog shows any of the following after possible mushroom ingestion:
- Vomiting and diarrhea (which may be bloody)
- Excessive drooling or salivation
- Weakness, lethargy, or collapse
- Uncoordinated, wobbly movement (ataxia)
- Tremors or seizures
- Yellowing of the gums or eyes (jaundice, a sign of liver damage)
- Abdominal pain or a tense, painful belly
Vomiting and diarrhea have many causes, so it helps to know what is normal and what is an emergency. Our guide to vomiting and diarrhea in dogs walks through the warning signs, but with any chance of mushroom exposure, do not wait it out at home.
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What to Do If Your Dog Ate a Wild or Store-Bought Mushroom
If your dog ate a plain store-bought mushroom (a slice of raw white button off the counter, for example), the risk is low. Watch for mild stomach upset over the next day and call your vet if symptoms appear or seem severe.
If your dog ate a wild or unknown mushroom, treat it as a potential emergency and act fast. Speed matters most with the liver-destroying species, where early treatment makes the biggest difference. Follow these steps:
- Remove any remaining mushroom from your dog's mouth and surroundings so no more is eaten.
- Call your veterinarian, an emergency vet, ASPCA Animal Poison Control at 888-426-4435 (a consultation fee may apply), or the Pet Poison Helpline at 855-764-7661 immediately.
- Do not wait for symptoms to appear, and do not try to induce vomiting at home unless a veterinarian specifically tells you to.
- If you can do so safely, collect a sample of the mushroom in a paper bag (not plastic, which speeds spoilage) and photograph where it was growing, so a specialist can help identify it.
- Bring the sample and any photos with you to the clinic to guide treatment.
- Treat any wild-mushroom ingestion, any seizure, any collapse, and any yellowing of the gums as an immediate emergency. Call a vet or poison control before symptoms start. For a refresher on handling toxin exposures, see our guide to [pet poison emergency](https://www.petful.com/pet-health/pet-poison-emergencies/) response.
Can Dogs Eat Medicinal or Functional Mushrooms?
Functional mushrooms (reishi, turkey tail, lion's mane, cordyceps, maitake, and chaga) are a separate category from food mushrooms. They are sold as dog supplements, usually as powders, chews, or tinctures, and are marketed for immune and general wellness support. These are not the same as a culinary mushroom you add to a meal.
The honest picture: research in dogs is still limited, and supplements are not tightly regulated. Some products may offer support, but the evidence does not justify treating any mushroom as a cure for cancer or other diseases. If you are interested in a functional mushroom supplement, talk to your veterinarian first. They can advise on whether it is appropriate, what dose is reasonable, and whether it could interact with your dog's medications. Do not start a supplement on your own based on marketing claims.
Can Dogs Eat Magic (Psilocybin) Mushrooms?
No, never. Psilocybin (magic) mushrooms are toxic and dangerous to dogs and are completely different from culinary mushrooms. Ingestion can cause vomiting, disorientation, agitation, tremors, elevated heart rate, and seizures, and is a veterinary emergency. Keep any such mushrooms entirely out of a dog's reach.
Do Mushrooms Have Any Benefits for Dogs?
Plain cooked mushrooms are low in calories and contain small amounts of B vitamins, potassium, copper, selenium, and antioxidants, along with a bit of fiber. Those are nice extras, but they are not nutrients your dog is likely missing if they eat a complete, balanced diet. In other words, mushrooms are a fine occasional treat, not a health food your dog needs.
If your goal is to add wholesome variety to your dog's bowl, there are vegetables that deliver more bang for the buck and carry less preparation risk. Crunchy options like can dogs eat asparagus and carrots are easy, low-fat choices. Think of mushrooms as one small item on a long list of dog-safe foods, valued more for flavor and novelty than for nutrition.
Frequently Asked Questions
Yes, plain cooked mushrooms are safe and are the best way to serve them. Cooking makes the tough cell walls easier to digest. Use only plain, store-bought varieties (white button, cremini, portobello, shiitake) and cook them with no butter, oil, salt, garlic, or onion. Serve small pieces as an occasional treat, not a daily food.
All wild mushrooms should be treated as toxic because they are nearly impossible to identify safely. The deadliest species include Amanita phalloides (death cap) and the destroying angels, which cause fatal liver failure, plus Amanita muscaria (fly agaric), Galerina marginata, Inocybe species, and false morels. Never let a dog eat a mushroom growing outdoors.
Signs include vomiting, diarrhea (sometimes bloody), excessive drooling, weakness, lethargy, wobbly movement, tremors, seizures, yellow gums or eyes, and abdominal pain. Timing varies by species, and the deadliest death cap can be delayed 6 to 24 hours with a false-recovery window. Never wait it out. Call a vet immediately if you suspect wild-mushroom ingestion.
Treat it as a potential emergency. Remove any remaining pieces, then call your vet, an emergency clinic, ASPCA Animal Poison Control at 888-426-4435, or the Pet Poison Helpline at 855-764-7661 right away. Do not wait for symptoms or induce vomiting at home unless told to. If safe, bag a sample in paper and photograph where it grew for identification.
No. Onions and garlic are toxic to dogs in any form and can damage red blood cells, causing anemia. The mushroom itself may be safe, but a dish cooked with onion or garlic (or heavy salt and fat) is not. That rules out most cooked mushroom dishes, including mushroom soup, gravy, risotto, and pizza.
No, plain store-bought mushrooms are not bad for dogs. White button, cremini, portobello, shiitake, oyster, and similar culinary varieties are non-toxic when cooked plain and served in moderation. They are not nutritionally necessary, so keep them an occasional treat. The risk comes from wild mushrooms and from seasonings, not from grocery-store mushrooms themselves.
Carol Bryant is the founder FidoseofReality.com and SmartDogCopy.com. A pet product expert, Carol is the Past President of the Dog Writers Association of America (DWAA) and winner of Best Dog Blog. A dog lover of the highest order is how Gayle King introduced Carol when she appeared with her Cocker Spaniel on Oprah Radio’s Gayle King Show to dish dogs. She helps pet, animal, and lifestyle brands achieve copywriting and content marketing success using well-trained words that work and is well-known in the pet industry.
Veterinarian · BVMS, MRCVS
Dr. Pippa Elliott, BVMS, MRCVS, is a veterinarian with nearly 30 years of experience in companion animal practice. Dr. Elliott earned her Bachelor of Veterinary Medicine and Surgery from the University of Glasgow. She was also designated a Member of the Royal College of Veterinary Surgeons. Married with 2 grown-up kids, Dr. Elliott has a naughty Puggle named Poggle, 3 cats and a bearded dragon.
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