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Organic Maitake Mushroom Powder for Pets - Bulk Powder

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  • Made from 100% organic maitake mushrooms
  • Extracted with hot water extraction
  • USDA Organic
  • Gluten-Free, Non-GMO, Vegan
  • Guaranteed >20% Beta-glucans
  • No added starch, mycelium, or grain of any kind
  • Bulk mushroom extract powder, 45g, 45 servings
  • Verified for quality at accredited 3rd party labs
  • Healthy and safe for your pets
  • Made in an NSF certified facility in the USA
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The Dancing Mushroom

Maitake mushroom, also known as "Hen of the Woods", is native to East Asia and North America. Revered for its large, fan-shaped, overlapping clusters, this mushroom is not only a culinary delight but also has been used traditionally in herbal medicine. Rich in beta-glucans, Maitake is known for its immune system modulating properties.

Organically grown and extracted to increase the bioavailability of the beneficial compounds.

Learn More about Maitake

Nothing To Hide Here.

100% Organic Mushroom Extracts

Always extracted from certified organic mushrooms to unlock the beneficial compounds like beta-glucans and improve bioavailability.

Beta-glucans Verified

Beta-glucans are the most important and abundant compound in these mushrooms so we always verify and guarantee them right on the label.

No Grain Fillers

Unlike myceliated grain alternatives, our products contain absolutely NO grains or starchy fillers.
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Why Beta-Glucans Matter

Beta-glucans are the most abundant and primary active compound found in mushrooms and mycelium.

These complex polysaccharides are where much of the immunological benefits come from which is why it is so important to validate and guarantee beta-glucan content.

A lack of beta-glucans can be attributed to many things like low quality ingredients, improper processing and extraction or the addition of fillers like grains (see alpha-glucans).

All Real Mushrooms products have verified levels of beta-glucans right on the label so you can trust that you're getting the benefits you deserve.

ConsumerLab's #1 pick for mushroom products!

We received this industry recognition for the last two years and running. This reaffirms our commitment to delivering the best, most reliable functional mushroom products to enhance your health journey.

Trust, quality and your well-being are at the heart of everything we do.

+ratings based on results of the 2023 Survey of supplement Users.
More information at

Do You Really Know What’s in Your Mushrooms?

Many products that claim to contain mushrooms actually contain none. What they are is the mushroom's root system, known as mycelium, which is grown on grains like rice and oats and this grain cannot be separated from the final product. This residual grain contributes high levels of starch which in turn dilutes the potential for active compounds like beta-glucans.

A 2017 study from Nature on reishi supplements found that 74% of products were inauthentic with 68% containing starch-like polysaccharides (ie. fillers).

ConsumerLab also found similar results in their reishi report and found Real Mushrooms to be their #1 choice.

Loved by Vets Around The World

Dr. Neal Sivula DVM

Dancing Paws Animal Wellness Center

“The majority of my practice are geriatric dogs and cats that have a variety of chronic diseases. I believe that functional mushrooms have a place in the treatment plan for most if not all of these patients. I trust Real Mushrooms sourcing, processing, and production and I love the broad spectrum of mushrooms in this product.”

Dr. Jennifer Luna Repose DVM

New Earth Pet Healing

“As a holistic house call veterinarian, I get to know my clients in an intimate nature as they look to me for guidance in selecting effective supplements for their fur babies that are organic, sustainably sourced, and easy to administer. Real Mushrooms checks off all these boxes and my clients have been very pleased with how effective they are in their pets.”

Dr. Sue Howell DVM, CVFT, CVA

Thrive Wholistic Veterinary Care

“5 defenders is my “go to” for immune support. It is a great addition to most protocols, and compliance is good. I add the capsule to the food, or open the capsule and sprinkle the powder on the food. So far I haven’t had any pets refuse. Even cats!”

Dr. Anne Reed DVM

All Paws Holistic Veterinary Clinic

“It’s interesting that we’ve found a way to cultivate Lion’s Mane to support our aging population- the plants hear our calls for help. The Relax blend is a really great combination. I can’t keep in on the shelf. Need to go order more…”

Frequently Asked Questions

Where are your mushrooms from?

All our mushroom extracts are from the leading supplier of organic mushroom extracts: Nammex. They have over 40 years of mushroom growing experience and were one of the first companies to bring organic medicinal mushroom extracts to North America.

Their ingredients go through rigorous quality control and are tested twice for heavy metals, agricultural chemicals and microbial contamination to ensure they meet all standards for dietary supplements of this nature. All of their extracts are made from certified organic mushrooms (fruiting bodies), organically grown or wildcrafted from deep within mountain regions of China.

Mushrooms used for dietary supplements are seldom grown in North American since it is too expensive. In fact, China is the leading supplier of mushrooms worldwide and supplies over 90% of the world’s mushrooms. It has a rich history of mushroom use as both food and medicine and is the birthplace of mushroom cultivation with shiitake being farmed in the early 1200s. China is one of the only places in the world where you can get 100% organic mushroom (fruiting body) extracts that can be sold at an affordable price.

Why do the capsules contain other ingredients?

Natural ingredients don’t always flow smoothly through processing equipment and capsule manufacturers need to utilize other ingredients in order to fill capsules. It is common practise for encapsulation facilities to require the use of other ingredients.

We have worked closely with our encapsulation partners to make sure that only what is added is absolutely necessary to create the capsules.

How can Lions Mane benefit my pet?

Lions Mane may offer cognitive support, may help with nerve growth regeneration, settling of your pet, and may help with digestion. It is also a very tasty mushroom and is more widely accepted by pets.

Why do you use mushrooms and not mycelium?

It is extremely important to distinguish the difference between mushrooms and mycelium.

Mushrooms are the "fruit" and reproductive stage of these organisms while the mycelium is the root system or "body" of the fungus.

Mushrooms contain much higher levels of active compounds like beta-glucans and have a very large body of research. They have also been consumed for thousands of years as food and many health benefits have been shown from just mushroom consumption.

Mycelium is commonly grown on a grain substrate and this grain cannot be separate from the mycelium so much of the final product is actually grain with no mushrooms present. This shows up in high amounts of starch and low amounts of active compounds like beta-glucans.

For these reasons, Real Mushrooms only utilizes mushrooms in all of their products with verified levels of the important active compounds like beta-glucans and always guarded against starchy fillers like grain.

What is the recommended dosage for my pet?

1 capsule for each 20-40 pounds of body weight daily, or as recommended by your veterinarian.

If your pet is under 20 pounds, you may still give them 1 capsule daily.

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