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A white container labeled "Real Mushrooms Mushroom Immune Pet Chews," a veterinarian-formulated supplement for dogs and cats, provides immune support with 60 chews (8.47 oz/240 g).
A container of Real Mushrooms Mushroom Immune Pet Chews, a pet immune supplement, is displayed on a wooden surface with several chews in front.
Woman hugging her dog outdoors, with text: Support your pet’s immunity—give Real Mushrooms Mushroom Immune Pet Chews daily to help promote overall wellness.
Mushroom Immune Pet Chews by Real Mushrooms provide dark brown organic chews with scientifically verified mushroom extracts for immune, antioxidant, adaptogen, and gut support in pets. Intended as a supplement. FDA disclaimer applies.
Real Mushrooms Mushroom Immune Pet Chews provide immune support for pets with five functional mushrooms, blueberry, acerola, astragalus root, two adaptogens, and olive leaf extract to help strengthen your pet's immune system.
Bryan gives a five-star review for Real Mushrooms' Mushroom Immune Pet Chews, highlighting their immune support for his young dogs. The review is featured on a dark green background with a mushroom logo at the bottom.
A man in a plaid shirt sits with a white dog, holding up its ears. Text above introduces Dr. Rob Silver, DVM, holistic vet, who discusses Real Mushrooms' Functional Feline Powder for cats and its immune support benefits.
Comparison chart highlights how Real Mushrooms' RealRest (Reishi, Valerian, Lemon Balm) compares to other brands in source, testing, extraction methods, transparency, and cost per active compound such as Reishi.
Two men kneel inside a greenhouse filled with rows of cultivated Reishi mushrooms. Above them, text reads: "Real Mushrooms: Over 50 Years of Growing Experience. Featuring RealRest—Reishi, Valerian, and Lemon Balm.

Mushroom Immune Pet Chews

  • Pet Health
†
$44.95
$44.95
$38.21 Translation missing: en.product.item_on_sale_compare_at $44.95

100% Satisfaction • Fast Free Shipping $75+ • Secure Checkout

Comprehensive immune support for pets in one tasty chew.

Veterinarian-formulated Mushroom Immune Pet Chews combine organic mushroom extracts with adaptogenic herbs and antioxidant-rich superfoods to strengthen your pet’s natural defenses. 

With guaranteed beta-glucans in every serving, these grain-free chews are a convenient, palatable way to support immune balance, resilience, and overall vitality so your companion can stay strong and thrive through every stage of life.

Your pet’s immune system is the foundation of lifelong vitality, these chews make functional nutrition easy and enjoyable.

  • Comprehensive Immune and Microbiome Support
  • Whole Body Antioxidant Protection
  • Adaptogenic Support for Stress and Balance
  • Preconditioning for Strong Vaccine Response
  • Longevity and Vitality Across Life Stages
  • Support for Healthy Responses to Immune Challenges
  • Cellular Protection and Detoxification Benefits

Administer 1 tsp. of powder for every 20 lbs. of body weight once daily, or as directed by your veterinarian.

Real Mushrooms products are always:

  • Rated the #1 Mushroom brand by ConsumerLab
  • NASC (National Animal Supplement Council) audited and certified
  • Made from USDA Certified Organic Mushrooms
  • Verified for active compounds, safety, & purity through third-party testing
  • Free of any fillers
  • Sourced from mushroom (fruiting bodies) only—never mycelium fermented grain

This is our Real Mushrooms Guarantee: no shortcuts, no gimmicks—just real mushrooms.
Real Pets. Real Results.†

“My dog was found to have spots on her liver and spleen. Since I opted not to have her go thru a biopsy, she’s 12 years old, I decided to start the mushrooms. She’s doing so much better! It’s amazing. She is acting like she’s two again.”

– Verified Customer

“Talk about a purr-fect surprise! I was a bit skeptical about finding something my picky furball would actually enjoy while also supporting his immune health. But lo and behold, these chews worked their magic! My cat not only gobbled them up but also gave me that "more, please!" look. I can't recommend this product enough – it's a win-win for both you and your furry friend."

– Verified Customer

“I'm fostering a dog that has neurological issues and I give him Mushrooms Immune Pet Chews and it helps him a lot. He's more energetic and a happy boy. Thank you Real Mushrooms.”

– Verified Customer

Real Ingredients

5 Defenders™ Mushroom Extract Blend (Organic)

A blend of five functional mushrooms (Reishi, Turkey Tail, Shiitake, Maitake mushrooms and Chaga extract powders) known for their immune-modulating benefits. 

Boosts immune function, stabilizes mast cell membranes, has an anti-aging effect, and supports digestive health.

Ashwagandha Root (Organic) (KSM-66™)

Ashwagandha root is a traditional herb used in Ayurvedic health practices.

This ancient Ayurvedic herb supports stress reduction, energy, muscle function, immune health, and healthy aging in pets.

Astragalus Root

Astragalus root is a traditional herb derived from the Astragalus membranaceus plant, long used in Chinese wellness practices for immune and GI applications.

Astragalus root supports healthy immune function, anti-aging, and GI support in dogs and cats.

Acerola extract

Acerola extract is derived from the acerola cherry, a tropical fruit known for its rich content of vitamins, carotenoids, anthocyanidins and bioactive compounds such as ascorbic acid (vitamin C).

Acerola extract is a functional food containing many beneficial compounds that provide healthy support for cellular protection by scavenging tissue-damaging free radicals.

Olive Leaf Extract

Olive leaf extract is made from the leaves of the olive tree and is valued for its naturally occurring plant compounds.

Olive leaf contains a potent antioxidant called oleuropein, luteolin, apigenin, and several more antioxidant compounds that provide protection from cellular damage from reactive oxidative species.

Blueberry Powder

Blueberry powder is derived from dried blueberry fruits.

Blueberries are rich in naturally occurring antioxidants which when consumed regularly can provide cellular protection from oxidative stress that can support a healthy immune response.
4-Time Winner
Best Mushroom Supplement Brand: ConsumerLab.com Survey

Trusted by wellness seekers and professionals alike, our mushroom supplements have earned the rating of Best Mushroom Supplement Products four years in a row by consumers in ConsumerLab.com Annual Supplement Survey.

†Ratings based on results of the 2025 ConsumerLab.com Survey of Supplement Users. More information.
Real Quality

Real Mushrooms is built on 50+ years of mycological and mushroom-growing expertise. Our founder’s roots trace back to the beginning of the functional mushroom category in North America. Today, we continue to lead the industry in science-backed and effective mushroom supplements.

Purity, Potency, Transparency

Every batch of our supplements is lab-verified for purity. We test for unwanted fillers and various contaminants.

We ensure quality along the entire production process:

  • Source: Organically grown mushrooms from trusted long-term partners
  • Process: Extracted for bioavailability, lab-verified, and blended/packaged in the USA
  • Testing: Each batch is tested for heavy metals, microbial contamination, pesticides & solvents

Nothing hidden. No marketing gimmicks. Just real ingredients, real science, and real results.
Bar chart showing customer preferences for product attributes with 'Quality' being the highest.
Real Vet. Real Formula.
Dr. Robert Silver, DVM, MS
Chief Veterinary Officer Formulator

Dr. Robert Silver brings to the Real Mushrooms Science Team 40 years of practical clinical experience treating small and large animals with diet, acupuncture, nutraceuticals, botanicals, and medicinal mushrooms.

  • Graduated from Colorado State's College of Veterinary Medicine in 1982.
  • Established one of the first integrative vet clinics in the USA in Boulder, CO in 1993.
  • Adjunct faculty member at several veterinary colleges.
  • Published papers and books on the topic of alternative medicines for pet health.
Real Mushrooms vs. Other Brands

Not all mushroom supplements are created equal. Real Mushrooms has set the standard for the most effective mushroom products because we have never compromised on quality. Here’s how Real Mushroom supplements compare with the other leading brands on the market.

Real Mushrooms Other Brands
Mushroom Source 100% organic mushrooms (fruiting bodies) Mycelium fermented grain (starch) and fillers
Beta-Glucan Content Guaranteed beta-glucans — every batch third party tested for identity, purity and potency Typically low beta-glucans and not disclosed — may list total polysaccharides instead which includes any starches
Extraction Method Hot water extracted or dual extracted for potency & optimal absorption Improperly extracted or simply dried and ground
Filler-Free Guarantee No starch, no fillers, no mycelium fermented grain Commonly contains grain (rice, oats or sorghum), starch and/or maltodextrin
Transparency Full disclosure of ingredients, sourcing, testing and extraction Vague or misleading marketing and unclear labeling
Cost per Serving Cost-effective for active compounds concentration in every serving Very expensive for amount of active compounds present
Expertise 50+ years of mushroom cultivation expertise — leader in supplement industry quality & standards Mislead customers with ambiguous labeling and filler-heavy products

Take the guesswork out of your mushroom supplement. Start enjoying real results now.

Buy Now
100% organic mushroom extracts
•
Verified beta-glucans
•
No grain fillers
•
50 years of experience
•
Wellness backed by 40,000+ customers
•

Customer Reviews

Based on 30 reviews
77%
(23)
0%
(0)
10%
(3)
3%
(1)
10%
(3)
95.7
A
Anna

Dogs won't eat them. Therefore, it was a waste of money.

A
Anna

My dogs won't eat them.

A
A.D.

Disappointment they were hard as rocks dogs wouldnt touch

J
John

On subscription, bedt calue gound for our two smaller dogs.

K
Kat

Great product. So far my dog has been on it
For over a month, his allergies are better I think and I hope it will strengthen his immune system for the years to come.

123
Frequently Asked Questions

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 functional 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 America since they are too expensive. 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.

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 there is a large body of research on them. 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 separated 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 its products, with verified levels of important active compounds like beta-glucans, and is always guarded against starchy fillers like grain.

NSF certification ensures the product is manufactured under strict cleanliness, safety, and quality control guidelines. This means you can trust that Daily Dawg Powder meets the highest standards for pet supplements.

Mushroom Immune Chews support the microbiome and healthy immune system function with a blend of five powerful mushroom extracts, plant-based antioxidants, adaptogens, and herbal tonics.

Dogs: Give 1 soft chew for every 20 pounds of body weight once daily, or as directed by your veterinarian.

Cats: Give 1⁄4 chew twice daily, or as directed by your veterinarian.

They can be given daily as part of a proactive wellness routine.

Yes, Immune Chews are safe for both dogs and cats.

There are no reported negative interactions between mushrooms and common pet supplements or medications. Still, we always suggest checking with your veterinarian before starting any new supplement routine.