Medicinal Mushrooms for Dogs: Natural Support for Health and Vitality

By Ruth Roberts, DVM, CVA, CVH, CVFT, NAN.

Medicinal mushrooms have been used in systems like Traditional Chinese Medicine (TCM) for centuries to support immune balance and whole-body health. In recent years, scientific interest has grown around their bioactive compounds, especially beta-glucans, polysaccharides, and antioxidants, which have been shown in in vitro and animal studies to modulate immune responses, lower oxidative stress, and support cellular function.

In veterinary medicine, select mushrooms such as turkey tail (Trametes versicolor) are being explored for their role in canine wellness, particularly in immune and digestive health. A case series published in Veterinary Evidence evaluated the use of a mushroom-derived supplement, including turkey tail, as an adjunct to chemotherapy in dogs with lymphoma. Although the study had limitations, including lack of a control group, it suggested potential improvements in appetite, attitude, and gastrointestinal tolerance. These early findings highlight the promise of medicinal mushrooms as part of a holistic approach to support vitality in aging pets or those facing chronic health challenges.

Top Medicinal Mushrooms for Dogs

1. Turkey Tail (Trametes versicolor)

Turkey tail is one of the most widely used medicinal mushrooms, and it’s gaining attention for good reason. It contains natural compounds, PSP and PSK, that help support the immune system. In a case study published in Veterinary Evidence, dogs with lymphoma were given a mushroom-based supplement containing turkey tail alongside their regular treatment. Many of those dogs had a good appetite, stayed active, and had fewer stomach issues like vomiting or diarrhea. While the study wasn’t large and didn’t include a control group, it suggests that turkey tail may help dogs feel better during serious illness. On top of that, turkey tail may also support gut health by acting as a natural prebiotic, feeding the good bacteria in the belly, which plays a big role in keeping the immune system strong.

2. Reishi (Ganoderma lucidum)

Known as the “mushroom of longevity,” reishi is a natural adaptogen that may help the body manage oxidative stress. Reishi isn’t just helpful for humans, there’s now research showing how it may support dogs, too. In a 2024 study published in the Journal of Animal Science, healthy adult beagles were given daily Reishi mushroom supplements for 28 days. Dogs that received the highest dose (15 mg/kg of body weight) showed stronger immune responses, including better activity from certain immune cells and higher antibody levels after vaccination. While more studies are always helpful, this research shows promising signs that Reishi may help support a balanced immune system in dogs.

3. Lion’s Mane (Hericium erinaceus)

Lion’s mane mushroom is gaining attention in veterinary medicine for its potential to support brain and nerve health in pets. It may help dogs and cats recover from nerve injuries, such as spinal or radial nerve paralysis, and could be useful for pets with balance issues, memory loss, seizures, or even brain tumors. Some holistic vets also use lion’s mane for senior dogs showing signs of cognitive decline or confusion, and in cases of anxiety, digestive inflammation, or nerve-related pain. A 2023 review in Veterinary Medicine and Science noted its potential in conditions like degenerative myelopathy, intervertebral disc disease, and dementia. While lion’s mane is considered safe and no toxicity has been reported, pets with mushroom sensitivities may react. Because product quality can vary depending on how it’s grown or processed, always choose reputable sources and talk to your vet about the right form and dosage, whether it’s fresh-cooked, powdered, or a double-extracted tincture.

4. Shiitake (Lentinula edodes)

Shiitake mushrooms may offer gentle support for your dog’s overall wellness. In a recent study, dogs fed shiitake mushroom powder showed a drop in cholesterol levels and an increase in a protein called sirtuin1, which plays a role in how the body uses fat and energy. This protein is also involved in managing stress at the cellular level and may contribute to healthy aging. One of the active compounds in shiitake, eritadenine, is thought to help the body process fats more efficiently. Because of these effects, shiitake mushrooms are being explored for their potential to support dogs with weight-related concerns. While not a weight-loss solution, they may complement a broader wellness plan that includes balanced nutrition, exercise, and regular veterinary care.

5. Chaga (Inonotus obliquus)

Chaga mushrooms (Inonotus obliquus) are known for their high antioxidant content and are being studied for their potential role in immune and cellular support. In holistic veterinary care, chaga may be considered for dogs dealing with inflammation, oxidative stress, or general immune depletion. One recent laboratory study explored chaga’s effects on dog bladder cancer cells and found that it helped slow cell growth and affected markers related to cancer progression. While this research is still in the early stages and doesn’t mean chaga can treat cancer, it does highlight how its natural compounds might be useful in supporting overall cellular health.

Chaga also contains compounds like beta-glucans and polyphenols, which may contribute to liver support and immune balance. However, chaga is potent and contains oxalates, which may not be suitable for dogs with kidney issues. Because it can also interact with certain medications, it’s best to use a vet-approved product and consult your veterinarian before introducing chaga to your dog’s routine.

How to Use Mushrooms for Dogs

If you’re thinking about adding mushrooms to your dog’s wellness routine, it’s important to start with the right kind. Look for pet-safe products made from the fruiting body of the mushroom, which generally contains more beneficial compounds than the mycelium. Always begin with a small dose and monitor your dog closely for any signs of digestive upset or allergic reactions. Cooking fresh mushrooms before feeding is also recommended, as raw mushrooms can be tough to digest and may contain small amounts of naturally occurring compounds that could be harmful.

Combining different types of mushrooms, such as turkey tail and reishi, may offer complementary support for your dog’s immune and overall health. However, every dog is different, and what works for one may not be right for another. That’s why it’s best to consult a veterinarian familiar with integrative or holistic approaches before adding mushroom supplements to your dog’s diet, especially if your pet has an existing health condition or is taking medications.

Never feed wild mushrooms to your dog, many varieties are toxic and can be deadly, even in small amounts. Stick to mushrooms that are known to be safe and used in supplements or cooked preparations intended for pets. It’s essential to buy products from reputable sources and avoid anything foraged unless it has been positively identified by an expert and approved by your vet.

If your dog is on medication or has a chronic health condition, always work with a veterinarian before introducing any new supplements, including mushrooms. Keep an eye out for possible side effects like itching, vomiting, diarrhea, or changes in energy or behavior. While medicinal mushrooms can offer gentle support, they should be introduced thoughtfully and with professional guidance.

Why Mushrooms Work Best with a Holistic Wellness Plan

Medicinal mushrooms can be a powerful addition to your dog’s wellness routine, but they work best as part of a larger holistic strategy. Rather than relying on mushrooms alone, it’s important to pair them with a nutrient-dense, whole-food diet, like The Original CrockPet Diet, which provides the essential building blocks for immune resilience, gut health, and cellular repair. When your dog’s body is well-nourished with bioavailable nutrients from real food, mushrooms can work synergistically to help maintain balance and vitality.

Stress management is another vital piece of the puzzle. Chronic stress can weaken the immune system and disrupt hormone regulation, which in turn lower the body’s ability to respond to illness. Incorporating calming routines, regular gentle exercise, enrichment activities, and consistent daily rhythms helps lower stress and supports the body’s natural healing mechanisms. Mushrooms like reishi and lion’s mane offer adaptogenic properties, but their benefits become more beneficial when a dog’s environment and lifestyle also promote calm and stability.

One of the key reasons mushrooms offer such valuable support is because of beta-glucans, natural polysaccharides found in the mushroom cell walls. These compounds help regulate immune activity by priming immune cells, rather than overstimulating them. This means beta-glucans can support the body’s ability to respond appropriately to threats, while also protecting against oxidative stress and supporting cellular repair. When combined with whole foods and stress reduction, the immune-modulating effects of beta-glucans become part of a well-rounded wellness plan tailored to your dog’s long-term health.

Final Thoughts

While not a cure-all, medicinal mushrooms may offer a natural, research-informed way to support your dog’s immune system and overall well-being. When used thoughtfully as part of a balanced approach, they can complement whole food nutrition, stress management, and regular veterinary care in a holistic wellness plan.

If you’re curious about which mushroom varieties or blends might suit your dog best, a certified holistic pet health coach can help guide you based on your dog’s individual needs. Don’t hesitate to reach out for support, your pet’s health journey deserves a tailored, thoughtful approach.

Dr. Ruth Roberts is an integrative veterinarian and holistic health coach for pets, as well as the creator of The Original CrockPet Diet. Learn more at https://drruthroberts.com/.

Reference:
Basko, I. J., & Dohmen, L. (2023). Lion’s Mane (Hericium erinaceus): A potential treatment for neurologic disorders in veterinary medicine. Journal of the American Holistic Veterinary Medical Association, 70, 15–20. https://doi.org/10.56641/PSSJ9210

Tong, J. O. P. (2021). Does turkey tail as an adjuvant therapy improve the quality of life of canine lymphoma patients? Veterinary Evidence, 6(3). https://doi.org/10.18849/ve.v6i3.403