# Are Wild Mushrooms Toxic to Cats? What to Do Are wild mushrooms toxic to cats? Yes, some are, and a few can be deadly. Most backyard mushrooms will only cause stomach upset, but species in the Amanita and Galerina groups can destroy the liver within days [1][2]. Because even mushroom experts struggle to identify species by sight, the safest rule is to treat every wild mushroom your cat touches as poisonous [1][3]. This article is educational and is not a substitute for veterinary diagnosis or treatment. ## Quick Answer - Assume every wild mushroom is toxic. North America has over 100 poisonous mushroom species, and many look identical to harmless ones [1][3]. - The most dangerous groups are Amanita, Galerina, and Lepiota, which can cause fatal liver failure [1][3]. - Signs can start in 15 to 30 minutes, or take up to 24 hours to appear, depending on the species [1]. - If your cat ate any part of a mushroom, call your veterinarian, the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661 right away. - Do not make your cat vomit unless a veterinarian tells you to. ## Do Cats Eat Mushrooms in the Wild? Cats are obligate carnivores, so they have no nutritional reason to eat mushrooms. That does not stop some of them from sampling one. Curious cats, bored indoor cats with outdoor access, and kittens exploring the yard will sometimes bite, chew, or swallow a mushroom cap out of simple mouth curiosity. Cats are usually pickier than dogs about what they eat, and most confirmed mushroom poisonings involve dogs, who roam and eat indiscriminately [2]. That does not make cats safe. A cat who bats a mushroom around the patio and then grooms her paws can swallow spores and fragments. A cat who hunts mice may also eat a mushroom a rodent has been nibbling. The honest answer to "will cats eat mushrooms outside" is that most will not, but the ones who do tend to do it quietly, and you may never see it happen. That is why prevention matters more than watching. ## Which Mushrooms Are Dangerous, and What Parts Are Toxic? The whole mushroom is a problem. The cap, stem, gills, and even the spores can carry toxins, and drying or cooking does not make a poisonous mushroom safe [2]. A single small bite can be enough to cause serious illness in a cat, because cats are small animals. The species most often involved in deadly poisonings worldwide is Amanita phalloides, also called the death cap [2]. It grows in many parts of the United States, often near oak, chestnut, and pine trees. Other high-risk groups include Galerina and Lepiota species, which contain some of the same liver-destroying toxins [1][3]. The tricky part is identification. Poisonous and safe mushrooms can look nearly identical, and even trained mycologists sometimes need a spore print or lab work to tell them apart [1][3]. You cannot rely on color, smell, or the old folk tests about silver spoons and onion skins. None of those work. Some mushrooms act fast. Others cause no signs for many hours, which is exactly what makes them so dangerous [1][4]. ## The Toxic Principle and What It Does in the Body Different mushrooms contain different toxins, and each one attacks the body in its own way [2]. The deadliest are the cyclopeptides, found in Amanita phalloides and related species. These compounds block an enzyme the body needs to make new proteins. Cells in the liver and kidneys are hit hardest because they do the most protein-building work. The result is progressive organ failure that may not show up until damage is already severe [2][4]. Other mushroom toxins include muscarine, which overstimulates the nervous system and causes drooling, tearing, urination, and a slow heart rate. Ibotenic acid and muscimol, found in some Amanita species, cause disorientation, wobbling, and strange behavior. Gyromitrin and orellanine damage the liver and kidneys through different routes. Psilocybin causes neurologic signs [2]. A separate issue is mycotoxins, which are mold toxins that can contaminate commercial pet food. A 2026 screening of dry dog and cat foods found that levels of common mycotoxins stayed below existing safety limits, but cat cells were more sensitive than dog cells to certain ones in lab tests [5]. That is a food storage and quality issue, not a backyard mushroom issue, but it is a reminder that cats handle some fungal compounds differently than dogs do. ## Signs of Mushroom Poisoning in Cats and Their Timeline Signs depend on the mushroom and the dose. Watch for any of these after possible exposure [1][2]: - Vomiting, sometimes repeated - Diarrhea - Drooling more than usual - Lethargy or weakness - Wobbling, stumbling, or trouble walking - Tremors or seizures - Dilated pupils or unusual behavior - Yellow tint to the gums, skin, or whites of the eyes (a sign of liver trouble) - Collapse Timing is the part owners get wrong. Some mushrooms cause vomiting and drooling within 15 to 30 minutes of ingestion. Others produce no visible signs for up to 24 hours [1]. With Amanita phalloides, there is often a deceptive pattern: the cat vomits, seems to recover, and then crashes a day or two later as liver failure sets in [4]. That quiet period is not recovery. It is the toxin working. If your cat has any of these signs and could have reached a mushroom, treat it as an emergency even if she seems fine right now. ## What to Do Right Now Act first, worry about identification later. 1. Move your cat away from the area and bring her inside. 2. Call your veterinarian, the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661. These lines are staffed around the clock and can guide you through the next steps. 3. Do not induce vomiting unless a veterinarian tells you to. Making a cat vomit at home can cause aspiration, choke her, or make things worse if the mushroom is one that causes seizures. 4. Save the evidence. If any mushroom is left, put it in a paper bag or a sealed container and bring it with you. Photograph the mushroom where it grew, including the base and the surrounding trees. Do not eat it or taste it yourself. 5. Go to the vet. Do not wait for signs to appear. With liver-toxic mushrooms, early treatment is the difference between a full recovery and a fatal outcome [4]. If you have other pets, keep them away from the same spot in the yard. Mushrooms often grow in clusters, and a second pet can find the same patch within minutes. If you are also checking your home for hazards, our guides on [plants toxic to cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/plants-toxic-to-cats) and [what plants and flowers are toxic to cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/what-plants-and-flowers-are-toxic-to-cats) cover the indoor risks that cause far more cat poisonings than mushrooms do. ## Veterinary Treatment for Mushroom Poisoning Your veterinarian will start with a physical exam and a detailed history. Bring the mushroom if you have it, plus the time you think your cat ate it and any signs you have seen. Treatment depends on how much time has passed and what your cat is doing. Common steps include: - Decontamination. If your cat was seen within a short window, the veterinarian may induce vomiting safely and give activated charcoal to bind remaining toxin. This is a clinic procedure, not a home one. - Supportive care. IV fluids, anti-nausea medication, and medications to control tremors or seizures. - Blood work. Liver and kidney values, electrolytes, and clotting times, often repeated over one to three days to track damage. - Liver support. Medications and nutrition aimed at protecting the liver while it tries to recover. - Advanced care. In severe cases, a cat may need intensive monitoring, plasma, or referral to a specialty hospital. The exact drug doses and treatment plan are set by your veterinarian based on your cat's weight, blood work, and condition. There is no single antidote that reverses mushroom poisoning in cats. Treatment is about removing toxin, supporting organs, and buying the body time to heal. ## Outlook After Mushroom Ingestion The outlook varies widely, and it depends on the mushroom, the amount eaten, and how fast treatment started. In a large review of 421 mushroom ingestions in dogs, 45 percent of the mushrooms turned out to be non-poisonous, about 64 percent of cases were managed at home, and the overall survival rate was 98.6 percent [6]. Deaths in that review followed ingestion of Amanita muscaria and other toxic species [6]. Those numbers come from dogs, not cats, so they are a rough guide at best. Cats are smaller and may be more vulnerable to the same dose. The pattern that matters most is this: cats who eat a stomach-upset mushroom and get supportive care usually recover within a day or two. Cats who eat a liver-toxic Amanita or Galerina and are not treated early can develop irreversible liver failure, and some do not survive even with aggressive care [2][4]. If your cat ate a mushroom and you do not know which kind, the safest assumption is the worst one until your veterinarian says otherwise. ## Prevention and Safer Alternatives Prevention is simple, even if it takes some yard work. - Walk your yard every few days during mushroom season, especially after rain. Pull mushrooms up with the base and roots, bag them, and throw them in the trash. Do not compost them. - Keep cats indoors or supervise outdoor time closely, particularly in fall and spring when mushrooms flush [1]. - Check under oak, pine, and chestnut trees, which are common spots for Amanita species [2]. - Do not let your cat sample mushrooms from your kitchen either. Store-bought mushrooms are safe for people, but they offer no nutritional benefit to cats and can cause stomach upset [3]. - If you want to give your cat a treat, use a commercial cat treat or a small piece of plain cooked meat. Skip the mushrooms entirely. For a broader look at household hazards, see [what plants can be toxic to cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/what-plants-can-be-toxic-to-cats) and [what kind of plants are harmful to cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/what-kind-of-plants-are-harmful-to-cats). Many of the same habits (supervised outdoor time, quick yard checks, a call to poison control when something is eaten) protect your cat from both plants and fungi. ## Limitations and When to Contact a Veterinarian This article cannot tell you whether the specific mushroom in your yard is dangerous. Only a veterinarian, working with your cat and ideally the mushroom itself, can assess that. Individual cases need a veterinarian. Call your veterinarian or a poison control line the same day if: - You saw your cat bite, chew, or swallow any part of a wild mushroom - You found a chewed mushroom and cannot rule out your cat - Your cat has mild drooling, one episode of vomiting, or seems a little off after being outside Go to an emergency clinic right now if: - Your cat is vomiting repeatedly or has diarrhea - She is wobbly, trembling, or having seizures - She is drooling heavily, breathing fast, or collapsing - Her gums or eyes look yellow - She seems to improve after vomiting and then gets worse again, which is the classic Amanita pattern [4] Schedule a routine visit if your cat had possible exposure days ago and seems normal, so your veterinarian can check liver and kidney values. Damage from liver-toxic mushrooms can be silent at first [1][2]. ## Frequently Asked Questions ### Can a cat survive eating a poisonous mushroom? Yes, many cats survive with prompt treatment. Survival depends on the species, the amount eaten, and how quickly care starts. Liver-toxic mushrooms are the most dangerous, and delayed treatment raises the risk of permanent organ damage or death [2][4]. ### How long after eating a mushroom will my cat get sick? It varies by species. Some mushrooms cause signs within 15 to 30 minutes, while others take up to 24 hours [1]. A cat who seems fine right after eating a mushroom is not out of danger. ### Should I make my cat throw up if she ate a mushroom? No, not unless a veterinarian tells you to. Home vomiting attempts can cause choking, aspiration, or injury, and some mushroom toxins make seizures more likely. Call your vet or a poison control line and follow their instructions. ### Are mushrooms in cat food or cat treats safe? Mushrooms are not a natural part of a cat's diet, and there is no nutritional reason to feed them. Commercial cat foods are formulated to meet nutritional standards without mushrooms. If you are unsure about an ingredient, ask your veterinarian. ### Can my cat get sick from just licking a mushroom? Possibly. Licking or mouthing a mushroom can transfer toxins to the mouth and paws, and cats swallow small amounts when grooming. If you saw your cat lick or chew a wild mushroom, call your veterinarian or a poison control line for guidance. ## Related Articles - [Plants Toxic To Cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/plants-toxic-to-cats) - [What Plants Can Be Toxic To Cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/what-plants-can-be-toxic-to-cats) - [What Kind Of Plants Are Harmful To Cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/what-kind-of-plants-are-harmful-to-cats) - [Are Snake Plants Toxic To Cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/are-snake-plants-toxic-to-cats) - [What Plants And Flowers Are Toxic To Cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/what-plants-and-flowers-are-toxic-to-cats) - [Are Orchids Toxic To Cats](/knowledge/veterinary-medicine/toxicology-and-food-safety/are-orchids-toxic-to-cats) - [Is Mushroom Compost Toxic to Cats? What to Know](/knowledge/veterinary-medicine/toxicology-and-food-safety/mushroom-compost-toxic-cats) - [Are Button Mushrooms Toxic to Cats?](/knowledge/veterinary-medicine/toxicology-and-food-safety/button-mushrooms-toxic-cats) - [Can Cats Eat Mushrooms? Raw, Cooked, and Pizza Risks](/knowledge/veterinary-medicine/toxicology-and-food-safety/can-cats-eat-mushrooms) ## References 1. [Are Mushrooms Bad for Cats](https://www.petpoisonhelpline.com/uncategorized/are-mushrooms-bad-for-cats/). Pet Poison Helpline. 2. [Overview of Mushrooms Toxic to Animals - Toxicology](https://www.merckvetmanual.com/toxicology/poisonous-mushrooms/overview-of-mushrooms-toxic-to-animals). Merck Veterinary Manual. 3. [Can Cats Eat Mushrooms](https://www.petpoisonhelpline.com/uncategorized/can-cats-eat-mushrooms/). Pet Poison Helpline. 4. [Medical error in treatment of Amanita phalloides poisoning in pre-hospital care](https://pubmed.ncbi.nlm.nih.gov/35305697/). Scandinavian journal of trauma, resuscitation and emergency medicine, 2022. 5. [In vitro immunotoxicity of important mycotoxins detected in commercial dry dog and cat food in relation to internal exposure](https://pubmed.ncbi.nlm.nih.gov/42144471/). Mycotoxin research, 2026. 6. [A retrospective evaluation of mushroom ingestions in 421 dogs in Norway (2011-2022)](https://pubmed.ncbi.nlm.nih.gov/37057032/). Veterinary record open, 2023. ## Further Reading - [ASPCA Animal Poison Control Center](https://www.aspca.org/pet-care/animal-poison-control) - [ASPCA: People Foods to Avoid Feeding Your Pets](https://www.aspca.org/pet-care/aspca-poison-control/people-foods-avoid-feeding-your-pets) - [U.S. Food and Drug Administration: Potentially Dangerous Items for Your Pet](https://www.fda.gov/animal-veterinary/animal-health-literacy/potentially-dangerous-items-your-pet)