02.10.2025 •

Understanding the Medicinal Properties of Reishi Mushrooms

When it comes to holistic health and wellness, it’s hard to ignore the mounting evidence supporting the use of adaptogenic herbs and medicinal mushrooms. Among the most revered and researched of these mushrooms is the reishi mushroom, also known as Ganoderma lucidum. With a history deeply rooted in ancient Chinese medicine, reishi mushrooms have continued to capture the attention of scientists and health enthusiasts alike due to their remarkable medicinal properties and potential health benefits.

What Are Reishi Mushrooms?

First, let’s take a closer look at reishi mushrooms and where they come from. Reishi mushrooms are a type of fungus that grows on the decaying logs and stumps of various hardwood trees. These mushrooms are distinctively characterized by their reddish-brown caps and woody texture. While they have been a staple in traditional Chinese medicine for over 2,000 years, reishi mushrooms gained wider recognition in the Western world in the late 20th century, largely due to the increasing interest in natural medicine and remedies.

Medicinal Compounds in Reishi Mushrooms

The potency of reishi mushrooms lies in their rich array of bioactive compounds, which contribute to their impressive health-promoting properties. Some of the key compounds found in reishi mushrooms include:

  1. β-Glucans: Reishi mushrooms contain high levels of β-glucans (beta glucans), which are polysaccharides known for their immune-balancing and anti-inflammatory effects. These compounds play a crucial role in supporting the body’s immune system and promoting overall health.
  2. Triterpenes: Reishi mushrooms are also abundant in triterpenes, particularly ganoderic acids, which are responsible for the mushrooms’ adaptogenic and anti-tumour properties. Triterpenes have been the focus of numerous studies for their potential to combat cancer and reduce the risk of tumour growth.
  3. Polysaccharides: Apart from β-glucans, reishi mushrooms contain other polysaccharides that exhibit antioxidant and immune-regulating properties. These compounds help protect cells from oxidative damage and support the body’s defence mechanisms against infections and diseases.
  4. Lingzhi-8: One specific compound found in reishi mushrooms is a unique polysaccharide peptide complex called Lingzhi-8. This compound has been shown to have immunomodulating effects, contributing to the mushrooms’ ability to regulate immune function and promote overall well-being.

Medicinal Properties of Reishi Mushrooms

The diverse array of bioactive compounds in reishi mushrooms gives rise to a wide range of potential health benefits. Some of the most notable medicinal properties of reishi mushrooms include:

  1. Immune Support: Reishi mushrooms are renowned for their ability to either boost immune function to fight off infections and strengthen the body’s natural defences, or to calm an over-reactive immune system response, as is the case for allergies and autoimmune disorders. This is called immunomodulation.
  2. Anti-Inflammatory Effects: The anti-inflammatory properties of reishi mushrooms can help alleviate symptoms associated with inflammatory conditions such as arthritis and allergies.
  3. Stress Reduction: As adaptogens, reishi mushrooms can help the body adapt to stress, promoting a sense of calm and mental well-being without causing drowsiness.
  4. Antioxidant Protection: The powerful antioxidant compounds in reishi mushrooms help neutralize free radicals and protect cells from oxidative damage, thereby reducing the risk of chronic diseases.
  5. Liver Health: Reishi mushrooms have been shown to support liver function and aid in detoxification, making them beneficial for overall liver health.

The medicinal properties of reishi mushrooms are vast and well-supported by scientific research. From immune support to stress reduction and beyond, these remarkable fungi offer a wealth of health benefits that deserve our attention. As our understanding of holistic health continues to evolve, reishi mushrooms stand out as a shining example of nature’s ability to provide powerful remedies for the body and mind.

How to Benefit from Reishi’s Medicinal Compounds

Because some of reishi mushroom’s medicinal compounds are very bitter in flavour, and since the skin of the mushroom is hard and chitinous, they don’t make the best culinary mushroom. They are more commonly consumed in supplement format, but of course the quality of the starting ingredient and the way that it is processed become vitally important. Some of the compounds are found only in the fruiting body (the stem and cap) of the mushroom. Reishi mushroom supplements that only contain the mycelium (root-like parts) will be missing some of the key compounds.

Look for a high-quality, concentrated reishi supplement that includes the fruiting body. Take it with vitamin C-rich foods or a vitamin C supplement to improve your body’s ability to absorb the beneficial compounds. Because reishi is an adaptogen, it is generally safe to take regularly, but if you have complex health issues or are taking medications, you are best to consult with a regulated health professional.

By harnessing the incredible bioactive compounds within reishi mushrooms, we can tap into their potential to promote vitality, resilience, and overall well-being.

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Dr. Melissa Carr is a registered Doctor of Traditional Chinese Medicine with a B.Sc. in Kinesiology. In practice since 2001, Dr. Carr has a passion for sharing health information. She has been a nutrition instructor and a health consultant, lecturer, and writer for 24 Hours Vancouver newspaper, Fraser Health Authority, UBC, and the David Suzuki Foundation, amongst others.