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Writer's pictureDr. Gaffud

Mushrooms for Pets: Yes or No? (Country Vet Mom Explains)


A dog and a cat sniffing a mushroom

Mushrooms is not the first food that comes to mind when considering the pet's diet, but these fungi offer a surprising array of health benefits.


Packed with essential nutrients and medicinal properties, certain types of mushrooms enhance the dog’s well-being.


It’s crucial to know which varieties are safe and how to incorporate them correctly.


This article explores the following:


What are the Benefits of Mushrooms for Pets?

Turkey Tail mushroom with a dog and a cat on the side

Medicinal mushrooms, such as Reishi, Shiitake, and Turkey Tail, offer a plethora of health benefits for pets, particularly dogs. Their natural healing properties are attributed to bioactive compounds, including beta-glucans and polysaccharides, which support the immune system and promote overall pet health. 


“Beta-glucans in higher fungi, such as pleuran from oyster mushrooms and lentinan from Shiitake mushrooms, have shown anticarcinogenic activity and may help protect against allergies, increase Th1 lymphocytes, and help reduce cholesterol and body weight,” according to the 2009 study by Rop, O., et al.

Additionally, these mushrooms provide therapeutic benefits for various health issues, making them invaluable in veterinary medicine and holistic treatments for chronic illnesses.


What Nutrients Do Mushrooms Provide for Pets?

Medicinal mushrooms, such as Reishi, Shiitake, and Maitake, are packed with essential nutrients that offer various health benefits for pets, including dogs. The nutrients that safe, edible mushrooms provide are listed below.


  • B Vitamins (B1, B2, B3, B5, B6, B9): These vitamins support energy metabolism, brain function, and red blood cell production.

  • Vitamin D: Important for calcium absorption and bone health.

  • Selenium: An antioxidant that helps protect cells from damage.

  • Copper: Essential for iron absorption and the formation of red blood cells.

  • Potassium: Important for muscle function and fluid balance.

  • Beta-glucans: These soluble fibers support the immune system and improve gut health.

  • Protein: Mushrooms contain moderate protein, which is essential for muscle maintenance and repair.

  • Ergothioneine: A unique antioxidant found in mushrooms that help protect cells from oxidative stress.

  • Amino Acids: Mushrooms provide essential amino acids that pets need for various bodily functions.

  • Polysaccharides: These have immune-boosting properties.

  • Phenolic compounds: These have antioxidant properties.


These benefits illustrate not only the nutritional value of mushrooms but also how incorporating them into a pet's diet leads to improved vitality and longevity.


What Is Medicinal Mushroom for Pets?


Medicinal mushrooms for pets, including Reishi, Shiitake, Turkey Tail, and Cordyceps, are recognized for their natural healing properties. These fungi, with a rich history in traditional medicine, are believed to enhance the immune system, reduce inflammation, and promote overall health. 


Reishi is known for its stress-relieving properties, Shiitake boosts immune responses,

Turkey Tail promotes gut health, and Cordyceps enhances energy levels and athletic performance in active pets. 


Pet owners are increasingly turning to these natural remedies to complement conventional veterinary treatments.


Are Mushrooms Safe for Pets to Eat?


Yes, some mushrooms are safe for pets. When offering medicinal mushrooms to pets, it's crucial to be aware of potential toxicity concerns and safety precautions.


Consulting a veterinarian helps ensure the safe incorporation of mushrooms into a pet's diet. Some safe mushrooms for pets include shiitake, button, and reishi, while others like Amanita phalloides are highly toxic


Amanita phalloides ingestion in dogs can cause acute hepatic and renal failure, leading to death within 36 hours despite aggressive therapeutic measures,” according to the 2020 study by Amorim, C. 

Pet owners should learn to recognize signs of mushroom poisoning and consider starting with small amounts of cooked mushrooms under veterinary guidance.


What are the Types of Mushrooms Safe for Pets?

Cultured edible mushrooms of different varieties

Several types of medicinal mushrooms are considered safe and beneficial for pets, particularly dogs. The most popular options that provide various health benefits are listed below.


  • Shiitake mushrooms (Lentinula edodes)

  • Maitake mushrooms (Grifola frondosa)

  • Reishi mushrooms (Ganoderma lucidum)

  • Turkey Tail (Trametes versicolor)

  • Cordyceps


The photos of some of the safe mushrooms for pets are shown in Figure 1.


Shiitake Mushrooms


Shiitake mushrooms (Lentinula edodes) are renowned for their rich nutritional value and numerous health benefits for pets. They are particularly known for enhancing the immune system and acting as a natural remedy for various health issues.


Shiitake mushroom (Lentinula edodes) possesses anti-atherosclerotic bio-functionality, which can be applied as functional food-based therapeutics against cardiovascular diseases,” according to the 2016 study by Rahman, M., et al. 

Shiitake mushrooms contain bioactive compounds that boost the immune system, have antioxidant properties, and have potential therapeutic uses for pets. Including them in the pet's diet enhances their overall vitality and supports longevity. Consult a veterinarian about the best way to include them in the pet's nutritional plan.


Maitake Mushrooms


Maitake mushrooms (Grifola frondosa) are well-known for their therapeutic benefits, especially in supporting the immune system of pets. Dog owners often consider Maitake for its potential to help manage various health issues, including chronic diseases.


“Maitake PETfraction is a well-tolerated single agent for treating lymphoma in dogs, but no objective responses were observed,” according to the 2007 study by Griessmayr, P., et al.

Maitake mushrooms contain unique compounds that enhance the body’s natural defenses. They are rich in polysaccharides, particularly beta-glucans, which boost immune function, reduce inflammation, and promote healthy digestion. 


Reishi Mushrooms


Reishi mushrooms (Ganoderma lucidum) are often referred to as the 'mushroom of immortality'. They are celebrated for their holistic health benefits for pets, including managing chronic illnesses, reducing inflammation, boosting the immune system, increasing energy levels, reducing stress, and supporting pets fighting chronic illnesses such as arthritis.


“Ganoderma lucidum shows anticancer activity and has potential therapeutic potential as a dietary supplement for alternative therapy for breast and prostate cancer,” according to the 2003 study by Slíva, D. 

Turkey Tail


Turkey Tail (Trametes versicolor) is a beneficial mushroom for dogs and is known for its immune-boosting properties. Rich in polysaccharides, particularly polysaccharopeptides (PSP) and polysaccharide-K (PSK), Turkey Tail supports the immune system and has been studied for its potential anti-cancer effects. Additionally, it contains antioxidants that help protect cells from damage and promote overall health and vitality in dogs. 


“Turkey tail fungus has been shown to increase long-term survival in patients with gastrointestinal cancers when applied orally, with potential benefits for other cancers as well,” according to the 2005 study by Hobbs, C

As with any supplement, it's crucial to consult a veterinarian before adding Turkey Tail to the dog's diet to ensure proper dosage and safety.


Cordyceps Mushroom


Cordyceps mushrooms, known for their immune-boosting and energy-enhancing properties, are gaining popularity as a supplement for dogs. These fungi are believed to support respiratory health, improve stamina, and aid in overall vitality. Rich in antioxidants and polysaccharides, cordyceps help strengthen a dog's immune system and combat inflammation. 

“Cordyceps militaris mushroom has potential medicinal uses for various diseases, including anti-aging, cancer, and anti-microbial properties, with potential for herbal biotechnology drug discovery,” according to the 2010 study by Das, S., et al.  

While generally considered safe, it is essential to consult with a veterinarian before introducing cordyceps into a dog's diet to ensure it is appropriate and to determine the correct dosage.


Oyster Mushrooms


Oyster mushrooms are another type that provides significant health benefits for pets, offering a rich source of beta-glucans that support the immune system. Their nutritional value makes them a versatile addition to dog diets.


“Oyster mushrooms are a valuable addition to an atherosclerosis diet due to their high fiber content and low fat content, as well as their antioxidant, antibacterial, antiviral, antidiabetic, and anti-inflammatory properties,” according to the 2018 study by Sałata, A., et al.

Oyster mushrooms are packed with essential nutrients and antioxidants that help combat oxidative stress in dogs. They support digestive health, boost energy levels, and promote healthy skin. Incorporating oyster mushrooms into a dog's diet enhances overall well-being, making them a worthwhile choice for health-conscious pet owners.


Enoki Mushrooms 


Enoki mushrooms are recognized for their health benefits for pets, especially dogs. They are rich in nutrients and boost immunity, improve liver function, and support digestive health. Integrating these mushrooms into a pet's diet enhances overall well-being and longevity.


“Raw Oyster, Shiitake, and Enoki mushrooms show potent anti-inflammatory properties, but these effects decrease significantly after ultrasonication and heating, suggesting potential food processing risks,” according to the 2014 study by Gunawardena, D., et al.

Some of the safe mushrooms for pets: Shiitake (Lentinula edodes), Maitake (Grifola frondosa), Reishi, varnished conk, or ling chih (Ganoderma lucidum), Turkey tail (Trametes versicolor), Oyster mushroom, oyster fungus, hiratake, or pearl oyster mushroom (Pleurotus ostreatus), and Enoki or Enokitake (Flammulina filiformis) from Wikipedia.

Figure 1. Some of the safe mushrooms for pets: Shiitake (Lentinula edodes), Maitake (Grifola frondosa), Reishi, varnished conk, or ling chih (Ganoderma lucidum), Turkey tail (Trametes versicolor), Oyster mushroom, oyster fungus, hiratake, or pearl oyster mushroom (Pleurotus ostreatus), and Enoki or Enokitake (Flammulina filiformis) from Wikipedia.


How to Incorporate Mushrooms into a Pet's Diet?


Different mushroom varieties safe for pets arranged on a table

Incorporating mushrooms into the pet's diet is a simple yet effective way to enhance their nutrition and overall health. Options include homemade mushroom broth, mushroom treats, or dietary supplements designed specifically for pets.


Homemade Mushroom Broth


A homemade mushroom broth is a nutritious and flavorful way to incorporate medicinal mushrooms into the pet's diet. This natural remedy is made using various mushrooms such as Shiitake and Maitake, and is simple to prepare.


The mushroom broth is not only tasty but also serves as a beneficial dietary supplement for pets. Rich in antioxidants and vitamins, it supports their immune system and promotes overall health.


Homemade Mushroom Treats


Creating homemade mushroom treats is an excellent way for dog owners to provide their pets with the health benefits of medicinal mushrooms while ensuring they enjoy a tasty snack. These treats are packed with nutritional value from various safe mushrooms.


Adding Mushrooms to Meals


Adding mushrooms to the dog's meals enhances their nutrition and provides essential health benefits. This practice is part of a holistic health approach to pet care, ensuring a balanced diet enriched with medicinal properties.


Incorporating mushrooms into commercial or homemade dog meals is a transformative step toward improving the pet's overall health. It's vital to select the right types of mushrooms, such as shiitake, maitake, and button mushrooms, which offer a wealth of vitamins and antioxidants.


Mushroom Supplements for Pets

Mushroom supplements designed specifically for pets are a convenient way to ensure that dogs receive the health benefits associated with medicinal mushrooms. These supplements often contain concentrated extracts to maximize efficacy.


For pet owners considering these products, it's important to recognize the different types available on the market. When choosing quality products, pet owners should consider the source of the mushrooms, processing methods, and whether the supplement undergoes third-party testing. Always consult a veterinarian to ensure the chosen mushroom supplement aligns with the pet's unique health needs.


What are the Precautions When Feeding Mushrooms to Pets?

A dog and a cat lying on the grass with a poisonous Amanita mushroom species in front of them

When introducing mushrooms into the pet's diet, pet owners must be aware of precautions and potential toxicity concerns to ensure their safety. Knowledge of which mushrooms are beneficial and which should be avoided is fundamental for responsible pet care.


The photos of some of the safe and edible mushrooms for pets are shown in Figure 2.


What Mushrooms Should Not Be Fed to Pets?

Certain mushrooms are toxic and should never be fed to pets, including dogs. Pet owners need to be aware of these toxic mushrooms such as:

  • Amanita species (e.g., Amanita phalloides, also known as the Death Cap): Highly toxic and cause severe liver and kidney damage, often fatal.

  • Galerina species: Contain similar toxins to Amanita and are equally deadly.

  • Gyromitra species (False Morels): Contains a toxin called gyromitrin, which causes neurological and gastrointestinal issues.

  • Inocybe and Clitocybe species: Known to contain muscarine, which causes excessive salivation, lacrimation, urination, and gastrointestinal distress.

  • Lepiota species: Contains amatoxins, similar to Amanita, and causes severe liver damage.


Some of the toxic mushrooms for pets: Amanita muscaria, Galerina marginata, Gyromitra esculenta, Inocybe rimosa, Clitocybe nebularis, and Lepiota clypeolaria from Wikipedia.

Figure 2. Some of the toxic mushrooms for pets: Amanita muscaria, Galerina marginata, Gyromitra esculenta, Inocybe rimosa, Clitocybe nebularis, and Lepiota clypeolaria from Wikipedia.  


It's crucial to prevent pets from consuming wild mushrooms, as identifying toxic varieties is challenging. In case of exposure, contact a veterinarian immediately, as timely intervention is critical. 


Understanding the difference between edible and harmful species not only protects pets but also promotes a safer environment for all.


How Much Mushrooms Should Be Given to Pets?


Determining the appropriate dosage of mushrooms for pets is crucial for ensuring their health and safety. Veterinarians often provide recommendations based on the type of mushroom, the pet's size, and its specific health needs.


When considering the use of mushrooms, it's important to consult with a veterinarian. Each species of mushroom has varying effects, so the expert's guidance is invaluable.


Dosage calculation should typically factor in the animal's weight, age, and overall health status, ensuring that any potential benefits outweigh the risks. Safety precautions are equally essential; always monitor for adverse reactions, and never exceed recommended levels. Keeping a detailed log of any changes in the pet’s behavior helps determine the effectiveness of the mushroom dosage.


What Are the Potential Side Effects of Mushrooms for Pets?


Pet owners should be aware that not all mushrooms are safe for pets. Some mushrooms cause allergic reactions, and digestive issues, and toxicity. It's important to introduce new foods gradually and monitor the pet's health. Regular check-ups with a veterinarian are recommended.


Can Mushrooms for Pets Cause Allergies in Pets?


Yes, pets can develop allergies to certain types of mushrooms. It's important to consult a vet before introducing new foods. 


“Fungus food allergy syndrome (FFAS) is often caused by allergic cross-reactivity between airborne fungi and fungus-related foods, affecting various organs and requiring diagnosis and treatment,” according to the 2022 study by Xing, H., et al. 

Watch for symptoms such as itching, red patches, gastrointestinal upset, and swelling. If any of these symptoms occur, consult a vet promptly for examination and treatment options.


Are There Drug Interactions Pet Owners Should Be Aware Of?


Yes, some mushrooms impact medication effectiveness, so it's best to discuss dietary changes with a veterinarian to protect the pet.


“Reishi mushroom is commonly used by cancer patients and can potentially interact with prescription medications, including chemotherapy drugs,” according to the 2018 study by Yeung, K., Gubili, J., & Mao, J. 

Pet owners need to be aware of potential drug interactions when introducing mushrooms into their pets' diets. Consulting veterinary advice helps ensure safe usage. 


What Are the Signs of Mushroom Poisoning in Pets?


Signs of mushroom poisoning in pets varies depending on the type of mushroom ingested. Some common symptoms are listed below.

  • Gastrointestinal Symptoms:

    • Vomiting

    • Diarrhea

    • Abdominal pain

    • Excessive drooling

  • Neurological Symptoms:

    • Weakness

    • Ataxia (loss of coordination)

    • Tremors

    • Seizures

    • Lethargy

    • Agitation or hyperactivity

  • Liver and Kidney Symptoms:

    • Jaundice (yellowing of the skin and eyes)

    • Increased thirst and urination

    • Reduced appetite

    • Signs of liver failure

  • Other Symptoms:

    • Slow or irregular heart rate

    • Difficulty breathing


What Should Pet Owners Do In Case of Emergency?


If there is suspected mushroom poisoning in pets, immediate emergency care is crucial. Pet owners should contact a veterinarian or an emergency animal clinic as soon as possible to ensure the safety of their pets.


Time is of the essence when it comes to potential poisoning, so the first step is to stay calm and carefully assess the situation. It’s important to take note of the type of mushroom consumed, if possible, as this information greatly assists the veterinary team in making a diagnosis.


While waiting for assistance, owners should follow these key steps:

  • Gather Information: Document any symptoms observed in the pet, such as vomiting, diarrhea, or lethargy.

  • Collect Samples: If safe to do so, keep a sample of the mushroom for identification by the veterinarian.

  • Communicate Clearly: When contacting veterinary professionals, provide them with as much detail as possible regarding the incident, including the time of ingestion.

  • Follow Instructions: Listen carefully to any guidance provided by the veterinarian.


Being prepared and responsive makes a significant difference in the outcome of a poisoning case.


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