From millennia-old Chinese tradition to the research of 2025 — everything you need to know about Reishi, Lion’s Mane, Cordyceps, Turkey Tail, Chaga, Shiitake and Maitake.
Medicinal mushrooms are not a “wellness trend” of the last decade. They are an independent medical tradition, documented in Chinese texts from the first millennium BCE and studied today in hundreds of laboratories around the world with the tools of modern molecular biology. Two parallel streams — 2,500 years of traditional knowledge and 50 years of scientific evidence — converge on the same insight: certain mushrooms contain bioactive compounds that the human body recognizes and responds to with precision.
This guide does not summarize “benefits” — it breaks down the biology. You will read here what a β-glucan is and why it engages the Dectin-1 receptor, how H. erinaceus stimulates NGF, why PSK — an isolated, regulated compound, not the mushroom extract sold as a supplement — has been registered as a drug in Japan since 1977, and how to choose a supplement that will not waste your money. By the end you will know not only “what to take” — but “why this one specifically.”
The Triterra Farm approach — a clinical standard, not aesthetics
At Triterra Farm we cultivate seven medicinal-mushroom species in the Galilee, from fruiting bodies only (not mycelium on grain) — and that is a fundamental difference. Most products on the US market use Mycelium-on-Grain (mycelium grown on rice/oats), which usually contains over 50% starch from the grain and under 7% β-glucans. Fruiting bodies reach 25–40% β-glucans.
The Triple Extract process: cold-water extraction → a 7-week alcohol soak → hot-water extraction, at a 1:3 ratio. This process ensures the extraction of both classes of active components — water-soluble polysaccharides (β-glucans) and alcohol-soluble triterpenes. A product that contains only one of the two is a partial product.
1. What exactly are “medicinal mushrooms” and why are they biologically unique?
Medicinal mushrooms are specific species from the Basidiomycetes group — not every edible mushroom is a medicinal mushroom, and not every medicinal mushroom is pleasant to eat. For a broader map of the field, see our medicinal mushrooms overview. The defining feature comes down to a concentrated presence of bioactive compounds and a dual documented history of use — both traditional and scientific.
The fascinating biology is this: mushrooms are not plants. They are an entirely separate biological kingdom (Fungi), evolutionarily closer to animals than to plants — both kingdoms contain chitin in their cell structure and consume oxygen (heterotrophs). This means their chemical pathways also share a great deal with animal pathways, and so the human body “recognizes” their compounds better than plant compounds.
1.1 — Three main families of active compounds
Although every mushroom species is unique, three compound families appear in all of them — in different concentrations and forms. For the technical terms used throughout this guide, see the medicinal-mushroom, extraction and related-terms glossary:
A. Polysaccharides — mainly β-glucans
These are the true stars. β-glucans are chains of glucose molecules linked by β(1→3) bonds with β(1→6) branches. This structure is not a random thread — it is a specific molecular pattern that the human body evolved to recognize. When a β-glucan enters the gut, it binds to specific receptors (Dectin-1, CR3, TLR-2/6) on immune-system cells and triggers a cascade of signals that produces controlled immune activation.
Important to understand: the β-glucans remain in the large intestine and are not fully absorbed into the bloodstream. They act mainly through the GALT (Gut-Associated Lymphoid Tissue) — which houses 70% of the body’s immune cells.
B. Triterpenes
Lipophilic compounds (fat/alcohol-soluble) that appear especially in Reishi (Ganoderic acids) and Chaga (Betulinic acid, Inotodiol). They cross the blood-brain barrier and act systemically — anti-inflammatory, liver support, HPA-axis regulation. In Reishi, over 140 different triterpenes have been identified.
C. Phenols, flavonoids and alkaloids
A group of antioxidant compounds. In Chaga one of the highest ORAC (Oxygen Radical Absorbance Capacity) values ever documented in a food or supplement has been measured — over 36,000 ORAC units per gram. For comparison: wild blueberries (one of the most antioxidant-rich foods) — about 11,500.
1.2 — How do medicinal mushrooms differ from adaptogenic plants?
Adaptogenic plants such as ginseng or rhodiola act mainly on the HPA axis (stress and cortisol) and on the autonomic nervous system. Medicinal mushrooms act mainly on the immune system and microbiome — and therefore their effect is deeper and more systemic. They do not merely balance the stress response — they shift its biological substrate (cytokine quality, NK-cell activity, Th1/Th2/Th17 balance).
2. The clinical history: from Shennong to the Japanese PMDA’s approval of Krestin
The earliest medical reference to medicinal mushrooms is in the Shennong Ben Cao Jing (神農本草經) — “The Divine Farmer’s Materia Medica” — a Chinese codex from the first century CE (written on the basis of an oral tradition over 2,500 years old). The book classifies medicinal substances into three categories:
- Upper category (“Shang Pin”, heavenly) — substances that can be taken for a lifetime without side effects and that promote longevity. Here we find Ganoderma lucidum (Reishi) and Polyporus umbellatus.
- Middle category (“Zhong Pin”, human) — substances to be taken with care, effective for specific conditions.
- Lower category (“Xia Pin”, earthly) — strong remedies for treating illness, with side effects.
Reishi is the only mushroom to earn “heavenly” status — meaning, suitable for daily long-term use as prevention and health maintenance. This is the basis for its traditional use as the “mushroom of immortality.”
2.1 — The move to Japan and modern science
In 1960s–70s Japan, researchers at the Kureha company identified the clinical potential of certain mushrooms. In 1977 Krestin (PSK) was developed from Trametes versicolor, and it was the first mushroom compound in the world to be officially approved as a prescription drug in an oncological context by the Japanese Ministry of Health. In 1985 Lentinan was developed from Shiitake, and around the same period also Schizophyllan from Schizophyllum commune and Maitake D-fraction from Grifola frondosa.
An important distinction: PSK, PSP, Lentinan, Schizophyllan and D-fraction are isolated, regulated pharmaceutical compounds (some injectable) that were manufactured and studied in their pure form — and are not the whole-mushroom extract sold as a dietary supplement. The research data below refer to them in their isolated form.
At its peak, medicinal mushrooms were an industry of over one billion dollars a year in Japan, and 25% of non-radiation Japanese oncology expenditure was directed to them. To this day, Krestin (PSK) and Lentinan — in their isolated, regulated form — are listed in Japan’s national health system and are prescribed by oncologists as adjunct agents in the context of gastric, colorectal and lung cancer.
2.2 — Why did the West lag behind?
This is a substantive question. The regulatory reason: the US FDA requires an approval pathway for a single synthetic chemical molecule — not a complex biological mixture. It is essentially impossible to move a mushroom extract through the NDA (New Drug Application) pathway. That is why PSK in the US is a “Dietary Supplement.” The situation is slowly changing: in 2012 the NIH/NCCIH approved a one-million-dollar grant for a Phase I study of Trametes versicolor as an adjunct in breast cancer. In 2020 the FDA approved a fast track for developing mushroom-based drugs for resistant infections.
3. The biochemistry of immune modulation — how does it work at the molecular level?
The phrase “boosts the immune system” is problematic because it is imprecise. The immune system is not one thing — it is a network of dozens of cell types and hundreds of proteins that need to know when to act, how to act, and when to stop acting. The problem in autoimmune disease is not weakness — it is over-response. The problem in allergy is not weakness — it is misidentification.
Medicinal mushrooms do not “boost” — they modulate. The mechanism:
3.1 — The β-glucan pathway
When a β-glucan reaches the small intestine, it is not absorbed in its full form — rather it is taken up by M cells (Microfold cells) in the lining. M cells pass it to dendritic cells in the GALT, which present it to B and T cells. These cells recognize the β-glucan through three main receptors:
- Dectin-1 — on dendritic cells and macrophages. The primary receptor. Its activation leads to the Syk-CARD9 cascade and drives controlled production of pro-inflammatory cytokines (TNF-α, IL-6 — in moderate amounts).
- Complement Receptor 3 (CR3 / CD11b/CD18) — on neutrophils and NK cells. Its activation enhances phagocytosis and Antibody-Dependent Cellular Cytotoxicity (ADCC).
- TLR-2 and TLR-6 — engage the adaptive response (T-helper cells, antibody production).
The result: controlled immune activation without uncontrolled inflammation. This is the difference between β-glucans and synthetic cytokines (such as recombinant IL-2 injected during chemotherapy) — the cytokines activate intensely and sometimes cause over-response; β-glucans activate moderately and balance.
3.2 — Trained Immunity: the discovery of 2024
One of the most important breakthroughs of the last decade is the concept of “Trained Immunity.” It was previously thought that the innate immune system “forgets” — unlike the adaptive system, which remembers. In 2024, research published in PMC10902450 showed that β-glucans from mushrooms create epigenetic changes in cells of the innate system — changes that persist for weeks to months after exposure. In other words: medicinal mushrooms “train” the immune system to respond faster and more strongly to future challenges. This is far beyond a “temporary boost.”
3.3 — Parallel anti-inflammatory mechanisms
Simultaneously with immune activation, medicinal mushrooms reduce chronic inflammation. They do this through inhibition of NF-κB (a central transcription factor in every chronic disease), inhibition of the NLRP3 inflammasome (a central mechanism in autoimmune conditions), and activation of the Nrf2/HO-1 pathway (an endogenous antioxidant). This explains the seemingly contradictory synergy: immune strengthening + inflammation reduction at the same time.
4. The stars of the medicinal-mushroom world — the 7 key mushrooms
Each mushroom is an independent biological entity with its own chemical profile, mechanisms of action and applications. Here are the 7 covered in the modern professional field, ordered by depth of research:
4.1 — Reishi (Ganoderma lucidum) · the king of calming mushrooms
Known in Chinese as Lingzhi (“the mushroom of immortality”). The only mushroom to earn “heavenly” status in the Shennong Ben Cao Jing. Its specialty: the HPA axis and sleep. Reishi contains over 140 different triterpenes (Ganoderic acids) that act on the GABA system, increasing the REM phase and deep sleep. In addition — 25–40% β-glucans for immune modulation.
Research evidence: a GRADE meta-analysis by Jafari 2025 (17 RCTs, 971 participants) reported reductions in BMI, creatinine and heart rate. A Cochrane review by Jin 2016 (5 RCTs, 373 cancer patients) examined adjunctive support in an oncological context. Read the full guide on Reishi →
4.2 — Lion’s Mane (Hericium erinaceus) · the brain of the forest
A mushroom with a unique appearance (a shaggy sphere) that grows on mature trees. Its specialty: neurogenesis and neural protection. Lion’s Mane contains Hericenones and Erinacines — compounds that stimulate the synthesis of NGF (Nerve Growth Factor) and BDNF (Brain-Derived Neurotrophic Factor) — the two proteins responsible for the growth and maintenance of nerve cells.
Research evidence: Mori 2009 — an RCT in 30 older adults with MCI (Mild Cognitive Impairment), 16 weeks, a significant improvement on HDS-R tests. Saitsu 2019 — an RCT in 31 young adults, 12 weeks, an improvement in working memory. Vigna 2019 — an improvement in depressive symptoms.
4.3 — Cordyceps (Cordyceps militaris / sinensis) · the wizard of cellular energy
Originally a parasitic mushroom (it attacks insects) that today is grown on grain substrates under laboratory conditions. Its specialty: ATP cellular production and oxygen utilization. Cordyceps contains Cordycepin (3′-deoxyadenosine) and Adenosine — two nucleosides that support ATP production in the mitochondria. Additional compounds: Polysaccharide CS-F30, Beta-glucan CMP, Cordysinin.
Research evidence: Chen 2010 — an RCT in 20 older adults, 12 weeks, a 7% improvement in VO2max (oxygen utilization). Hirsch 2017 — an RCT in athletes, an improvement in endurance. Akihiko 2013 — improvements in libido and male energy.
4.4 — Turkey Tail (Trametes versicolor) · the champion of immune regulation
The most-studied mushroom in oncology research. Its specialty: immune modulation and microbiome. It contains the family of polysaccharide-peptides from which PSK (Krestin) and PSP (Polysaccharopeptide) are isolated. Important: the PSK and PSP approved in Japan in an oncological context from 1977 are isolated, regulated compounds — not the whole Turkey Tail extract sold as a supplement.
Research evidence: Oba 2007 — a meta-analysis of 8,009 gastric-cancer patients (studying the isolated compound PSK) reported a mortality hazard ratio of 0.88. Pallav 2014 — an RCT showed that PSP acts as a selective prebiotic for the microbiome. Torkelson 2012 — a Phase I trial in women with breast cancer showed safety up to 9 g/day. Read the full guide on Turkey Tail →
4.5 — Chaga (Inonotus obliquus) · the black diamond of Siberia
A mushroom that grows only on birch trees in freezing conditions (Siberia, Scandinavia, North America). Its specialty: systemic antioxidants and mitochondrial protection. Chaga contains the highest concentration of melanin of any food/supplement in the world, and a peak concentration of Betulinic acid (a compound that has been the subject of pre-clinical laboratory research, drawn from the birch trunk). ORAC: over 36,000 units per gram — the highest in the world.
Research evidence: most studies are still pre-clinical. A review by Lee 2008 reported anti-tumor activity in vitro. Clinical warning: Chaga contains high levels of oxalate — cases of kidney failure have been reported in people who consumed high amounts (Kwon 2022). It is not suitable for anyone with a history of kidney stones.
4.6 — Shiitake (Lentinula edodes) · the king of the kitchen with a medicinal soul
The most popular edible mushroom in the East. Its specialty: immunity, heart and liver. It contains Lentinan — a β-glucan that in its isolated form was approved in Japan in 1985 as an intravenous oncology drug (a regulated compound, not the supplement extract sold here). In addition: Eritadenine (reduces cholesterol), vitamin D2 (when sun-dried), essential amino acids.
Research evidence: Dai 2015 — an RCT in 52 participants, daily shiitake intake for 4 weeks showed improvements in immune markers (sIgA, CD4). Spim 2021 — an improvement in the lipid profile.
4.7 — Maitake (Grifola frondosa) · the dancing mushroom
A Japanese name meaning “the dancing mushroom” — legend has it that mushroom foragers who found it danced with joy. Its specialty: blood-sugar balance and metabolic support. It contains D-fraction — a β-glucan mixture that has been studied in an oncological context; in its isolated, regulated form in Japan it is a pharmaceutical compound, not the whole-mushroom supplement extract.
Research evidence: Konno 2002 — a study in type-2 diabetes patients reported reduced fasting glucose levels. Nanba 1995 — a reported improvement in quality of life among cancer patients.
5. Comparison table: which mushroom for which goal?
The table below visually summarizes the specialty of each mushroom. It is important to understand that there is no single “best” — each mushroom is a tool for a specific role, and the match is personal.
| Mushroom | Main specialty | Key compounds | Optimal time to take |
|---|---|---|---|
| Reishi | Stress, sleep, parasympathetic regulation | Ganoderic acids, β-glucans | Evening, before sleep |
| Lion’s Mane | Cognition, memory, brain, nervous system | Hericenones, Erinacines, NGF inducers | Morning / midday |
| Cordyceps | Energy, endurance, ATP, oxygen utilization | Cordycepin, Adenosine, CS-F30 | Morning only (not evening) |
| Turkey Tail | Immunity, microbiome, immune modulation | Polysaccharopeptides (PSP), β-glucans | Morning, on an empty stomach |
| Chaga | Antioxidants, cell protection | Melanin, Betulinic acid, SOD | Morning, with caution for kidney stones |
| Shiitake | Immunity, lipids, heart health | Lentinan, Eritadenine, vitamin D2 | Flexible |
| Maitake | Blood-sugar balance, metabolic support | D-fraction, unique β-glucan | With main meals |
Synergy — when the whole is greater than the sum of its parts
In practice, most people benefit more from a synergy of 2–3 mushrooms than from a single mushroom alone. The reason: each mushroom acts on a slightly different receptor/biochemical pathway. For example, Reishi + Turkey Tail covers the HPA axis and microbiome in parallel. Reishi + Lion’s Mane balances calm (evening) with sharpness (morning). Turkey Tail + Reishi supports immunity from two different angles. Explore the medicinal mushrooms overview →
6. How to choose a quality mushroom supplement — 7 objective criteria
The medicinal-mushroom supplement market has doubled in the last 5 years, and with the growth came a flood of problematic products. The difference between a quality product and a waste of money is not in the price — it is in the biochemical criteria that define what is actually inside the bottle.
Criterion 1: Fruiting body only
The most important criterion. Mycelium grown on grain = most of the product is starch from the grain, not mushroom. Independent lab testing (Berkeley Mushroom Lab) showed that mycelium-on-grain products usually contain less than 7% β-glucans. Fruiting bodies reach 25–40%.
Criterion 2: Precise standardization to β-glucans
A claim of “polysaccharides: 30%” is meaningless — because starch is also a polysaccharide. Look for “β-glucans: X%” in precise numbers. Professional minimum: 20%. Triterra: 25.65% (Reishi), 28.16% (Cordyceps), 23.93% (Lion’s Mane), 23.21% (Turkey Tail + Reishi blend) — lab-tested per batch.
Criterion 3: Type of extraction
Water extract only = polysaccharides only. Alcohol extract only = triterpenes only. Triple Extract = full spectrum. Non-extracted powder = no extraction; most of the active compounds stay inside the chitin wall and leave the body without absorption.
Criterion 4: Extract ratio
The ratio explains how many grams of dry raw material are represented in one ml of extract. 1:1 = weak (tea). 1:3 = professional (Triterra). 1:8 = very concentrated but sometimes loses delicate compounds in the process. This number must appear on the label.
Criterion 5: Source of cultivation
Mushrooms absorb heavy metals and contaminants from the substrate on which they grow. Cheap Chinese products have been found with high levels of lead, arsenic and cadmium. Demand a Certificate of Analysis (COA) that includes a heavy-metals test. Israeli cultivation in the Galilee = full control over the growing conditions and substrate.
Criterion 6: Mold testing (mycotoxins)
Mushrooms that are not stored properly = mold. Mold = mycotoxins = dangerous toxins. A COA must include a mycotoxins test (Aflatoxins, Ochratoxin A). This is non-negotiable.
Criterion 7: Transparency
A quality brand shows: an open COA for each batch, the full botanical species name (not just “Reishi” but “Ganoderma lucidum”), the mushroom part used (fruiting body / mycelium / spores), the extraction method, and the cultivation. This is how we work: the Triterra Farm transparency page → · the lab tests and β-glucan percentages for each batch →
7. A usage protocol — how to fit this into life
Medicinal mushrooms are not a drug for treating an acute condition. They act in a cumulative way over time — subjective changes begin within 2–4 weeks, and objective changes (in blood, immune and microbiome markers) require 8–12 weeks.
7.1 — Base amount and titration
Triterra’s triple extract at a 1:3 ratio: start at 1.0 ml per day (equivalent to 3 g of dried mushroom), gradually increasing to 1.5–2.0 ml per day. Cordyceps is an exception — a target of 1.0 ml only, because of its potency.
7.2 — Daily timing
- Morning: Lion’s Mane, Cordyceps, Turkey Tail, Chaga, Maitake — to support daytime activity.
- Evening: Reishi — to support sleep and recovery.
- Flexible: Shiitake (can be taken with a meal).
7.3 — Recommended combinations
Synergy for stress + cognition: Reishi (evening) + Lion’s Mane (morning). Synergy for energy + endurance: Cordyceps (morning) + Maitake (meal). Synergy for microbiome and immunity: Turkey Tail (morning) + Reishi (evening). Full metabolic synergy: Maitake + Shiitake + Chaga.
When not to take medicinal mushrooms?
- Pregnancy and nursing — lack of sufficient safety information.
- Two weeks before surgery — because of possible effects on blood clotting.
- Organ-transplant recipients — because of interaction with immunosuppressants.
- Autoimmune diseases in acute flare (Lupus, MS) — wait for remission.
- Taking anticoagulants (Warfarin) — INR monitoring required.
Keep exploring the guide
Prefer to go deeper into the biology before anything else? These pages break down the evidence, the lab data and the terminology.
Frequently asked questions — 18 clinical questions on medicinal mushrooms
For more questions and answers, see our full FAQ page.
1. What exactly are “medicinal mushrooms” — what is the definition?
Specific species of mushrooms from the Basidiomycetes group that contain concentrated bioactive compounds (mainly β-glucans, triterpenes and phenols) and have a documented history of use — both traditional (over 1,000 years) and scientific (over 50 years). The difference from ordinary edible mushrooms: a high concentration of the active compounds, and sometimes a physical structure not suited to direct eating (tough and fibrous).
2. Are medicinal mushrooms a “magic cure”?
No. They are not a substitute for conventional care of an acute condition. They are a long-term immune-modulating tool that supports the balance of the body’s systems. Research (Oba 2007, Zhong 2019) examined outcomes as an adjunct alongside conventional care — not as a primary therapy. Their effect builds gradually over weeks and months.
3. Do all medicinal mushrooms work the same way?
No. Although all of them contain β-glucans (a shared family), the specific concentration and structure differ from species to species. Reishi also contains 140+ triterpenes not found in Lion’s Mane. Lion’s Mane contains Hericenones that stimulate NGF — with no equivalent in Reishi. Cordyceps contains Cordycepin that supports ATP — unique to it. That is why the choice should be specific to the goal.
4. How do I know which mushroom is right for me?
The primary-goal question: stress/sleep → Reishi. Cognition/memory → Lion’s Mane. Energy/endurance → Cordyceps. Immunity/microbiome → Turkey Tail. Blood sugar/metabolic → Maitake. Antioxidants → Chaga. The secondary-goal question: in most cases, a synergy of 2 mushrooms gives a better result than a single mushroom. Our overview and FAQ can help match to your goal.
5. What are β-glucans and why are they the central compound?
β-glucans are polysaccharides — chains of glucose linked by β(1→3) bonds with β(1→6) branches. This structure is a specific molecular pattern that the human immune system recognizes through specific receptors (Dectin-1, CR3, TLR-2/6). That engagement leads to controlled immune activation — not excessive. This is why β-glucans are regarded as one of the best-characterized immune-modulating compounds known.
6. What is the problem with “Mycelium on Grain”?
Mycelium is only the vegetative part of the mushroom — before the fruiting body grows. When it is grown on rice or oats for a short period and everything is dried together (including the grain), the final product is mostly starch from the grain. β-glucan content has often been measured below 7%, compared with 25–40% in quality fruiting bodies. This is the cheap, non-clinical standard.
7. What is the difference between a liquid extract and powder capsules?
A powder capsule = dried, ground mushroom, without extraction. The problem: the mushroom cell wall is made of chitin (the same polymer as in the shell of insects), and the human body cannot break it down efficiently. Most of the active compounds stay trapped and leave the body without absorption. A liquid triple extract = the active compounds are already freed and available for absorption through the lining of the small intestine.
8. How long until I feel a change?
It depends on the goal and personal profile. Subjective changes — energy, sleep, mood — usually 1–3 weeks. Objective changes in immune markers (NK cells, IgA) — 4–6 weeks (Pallav 2014 showed microbiome changes already after a week). Deeper systemic changes (liver enzymes, lipid profile, inflammation markers) — 8–12 weeks. Outcomes in the research literature reflected months to years of continuous use.
9. Are there side effects?
Rare and mild with quality products. Reported: mild gas at the start of use (prebiotic activity), mild drowsiness (Reishi in the evening), mild circadian confusion (Cordyceps in the evening instead of the morning). Rarer cases: lower blood pressure, changes in clotting (important for anyone taking Warfarin), liver strain with excessive intake of low-quality products (LiverTox database). These effects almost always resolve on discontinuation.
10. Is it safe with prescription medications?
In most cases yes, but there are 5 caution groups: (a) anticoagulants (Warfarin, aspirin, Clopidogrel) — monitor INR. (b) blood-pressure medications — risk of hypotension (mainly Reishi). (c) immunosuppressants (after transplants) — not without medical advice. (d) chemotherapy (Doxorubicin, 5-FU, Tamoxifen) — the oncologist must approve. (e) diabetes medications — Turkey Tail and Maitake may lower blood sugar, so monitoring is needed.
11. Can medicinal mushrooms replace medications?
No. They are dietary supplements — not drugs. Under no circumstances should you stop drug therapy (antibiotics, chemotherapy, heart medications, insulin) on your own and replace it with mushrooms. They may serve as an adjunct in coordination with your treating physician — that is the role examined in the research.
12. Is it safe for pregnant women, nursing women and children?
Pregnancy/nursing: not without medical advice. There is not enough safety research, and some compounds may cross the placenta/milk. Children under 12: rarely needed — and the amount must be adjusted by a qualified practitioner. Healthy children over 12: usually safe, but at a reduced amount (50% of the adult amount).
13. Are medicinal mushrooms vegan?
Yes, 100% vegan. Mushrooms are a separate biological kingdom (Fungi) and are not animals. All of Triterra’s products — from cultivation to the bottle — are fully vegan, including our Cordyceps, which is grown on a plant-based substrate (unlike traditional Chinese Cordyceps that grows on insect larvae).
14. What is the “traditional method” of taking medicinal mushrooms?
In Traditional Chinese Medicine — steeping a tea from 2–3 slices of dried mushroom in boiling water for 30–60 minutes. This method extracts only the water-soluble components (polysaccharides) and misses the triterpenes (alcohol-soluble). That is why the modern Triple Extract method — cold water + alcohol + hot water — is considered preferable: it extracts both classes of component.
15. What is the “Trained Immunity” people talk about?
A discovery from 2020–2024 that changes our understanding of the immune system. It was previously thought that only the adaptive system (B and T cells) “remembers” — and that the innate system (NK, macrophages) forgets. Newer research showed that β-glucans from mushrooms create epigenetic changes in cells of the innate system — changes that persist for weeks after exposure. In other words: medicinal mushrooms “train” the immune system to respond faster and more strongly to future challenges.
16. Are medicinal mushrooms really an “adaptogen”?
Technically — some are, some are not. Reishi and Cordyceps are considered clear adaptogens — acting on the HPA axis and balancing the stress response. Lion’s Mane is more neurotrophic than adaptogenic. Turkey Tail is mainly an immune modulator and prebiotic. The term “adaptogen” is reserved for compounds that balance homeostatic responses — which is only part of what medicinal mushrooms do.
17. What is the difference between the Japanese PSK and the Turkey Tail extract I buy here?
Japanese PSK (Krestin) is a specific isolated molecule — a protein-bound polysaccharide of a specific molecular weight (94 kDa) produced through a patented process by the Kureha company. A quality Turkey Tail extract made by Triple Extraction contains the full spectrum of polysaccharide-peptides (from the family from which PSK is isolated), PSP, additional β-glucans and triterpenes. Important to clarify: this is a dietary supplement, not the isolated, regulated PSK compound. The question of synergy across the full-spectrum components is being researched, and a dietary supplement should not be equated with an isolated, regulated drug.
18. Why do we see a whole culture around “Mushroom coffee”?
It is a modern method of blending a mushroom extract (usually Lion’s Mane + Cordyceps + Chaga) into coffee — convenient and popular in the US. The advantage: convenience. The drawback: the amount is often below what research uses (less than 500 mg of mushroom per cup), and the β-glucan percentage is not always known. For meaningful results, a concentrated liquid extract is always preferable.
