There’s something ancient about mushrooms. Something older than plants and animals, older even than us.
Fungi have existed for over a billion years. They colonised dry land before plants did. They built the underground networks, the mycelium, that still connect the trees of our forests today, letting them trade nutrients and chemical signals. Biologists call it the Wood Wide Web: the internet already existed, right under our feet.
But fungi didn’t just connect nature. They also supported it.
For at least 5,000 years, traditional Chinese, Japanese and Tibetan medicine have used medicinal mushrooms for fatigue, inflammation, insomnia, cognitive decline and immune imbalance. Ötzi, the Iceman found in the Italian Alps and dead some 5,300 years ago, carried two species of medicinal mushroom in his survival kit.
This is less a trend than a return.
And modern science, for once, is confirming what tradition had been passing down for millennia.
What medicinal mushrooms are (and what they aren’t)
First, an important clarification. Medicinal mushrooms have nothing to do with “magic” mushrooms (psilocybin) or the porcini you fry on a Sunday. They’re specific species, studied for their bioactive compounds with documented effects on health.
The main active compounds include:
| Compound | What it does | Found in |
|---|---|---|
| Beta-glucans | Modulate the immune system, boosting it when weak, calming it when overactive | All medicinal mushrooms |
| Triterpenes | Anti-inflammatory, calming, protect the liver | Reishi, Chaga |
| Erinacines and hericenones | Stimulate the production of NGF (Nerve Growth Factor), regenerating neurons | Lion’s Mane |
| Cordycepin | Improves oxygen transport, supports cellular energy | Cordyceps |
| Polysaccharides | Antioxidant, prebiotic, support the microbiome | All |
Unlike drugs, medicinal mushrooms work like a regulator rather than a switch. They modulate and gently rebalance. That’s why traditional medicine classed them as adaptogens: substances that help the body adapt to stress.
The 5 most studied medicinal mushrooms
Among the thousands of fungal species, these five have the most solid body of research. Each has a specific “talent”.
1. Lion’s Mane (Hericium erinaceus): the brain mushroom
You’ll spot it at once: it looks like a cascade of white icicles. In China they call it hóu tóu gū (monkey head mushroom), in Japan yamabushitake (the mushroom of the mountain hermits). Buddhist monks used it to sharpen focus during meditation¹.
Lion’s Mane is unique in the fungal kingdom for one reason: it’s the only known mushroom that stimulates the production of NGF (Nerve Growth Factor) and BDNF (Brain-Derived Neurotrophic Factor), the proteins that grow, repair and protect neurons¹.
What the research says:
- A Japanese RCT on adults with mild cognitive impairment showed a significant improvement in cognitive function after 16 weeks of use (3g a day)¹
- A 2023 study in the Journal of Neurochemistry pinned down the mechanism: Lion’s Mane’s active compounds drive neuron growth and improve memory formation
- A 2023 meta-analysis of 11 studies confirmed positive effects on anxiety, depression and cognition, with a particularly strong effect on reducing anxiety
| Benefit | Evidence |
|---|---|
| Memory and focus | Strong (RCT + mechanistic studies) |
| Anxiety reduction | Moderate to strong (meta-analysis) |
| Neuroprotection | Strong (documented NGF/BDNF stimulation) |
| Digestive support | Moderate (prebiotic and gut anti-inflammatory action) |
Sciamanoverde tip: Lion’s Mane is the mushroom for anyone struggling with focus and that so-called brain fog. If chronic cortisol has clouded your clarity, Lion’s Mane can be a real ally.
If you want to try Lion’s Mane, look for a standardized dual-extract from the fruiting body, with the beta-glucan content declared on the label.
2. Reishi (Ganoderma lucidum): the calm mushroom
In China they call it Ling Zhi, the “mushroom of immortality”. For over 2,000 years it was considered the most precious preparation in the Chinese tradition, reserved for emperors and Taoist monks. It appears in hundreds of ancient paintings and sculptures as a symbol of health and long life².
Reishi won’t hand you energy. What it offers is rarer: deep calm without sedation.
What the research says:
- Reishi’s triterpenes (ganoderic acids) have shown a calming action on the central nervous system similar to benzodiazepines, but without the side effects²
- An RCT in patients with neurasthenia showed a significant drop in fatigue and a better sense of well-being after 8 weeks
- Reishi’s beta-glucans are among the most powerful natural immunomodulators known. They don’t simply stimulate the immune system, they regulate it, which makes them useful both for a suppressed immune system and for autoimmunity⁴
- Recent studies show a meaningful effect on sleep quality, improving both the length and the depth of rest
| Benefit | Evidence |
|---|---|
| Calm and anxiety reduction | Moderate (animal studies + clinical trials) |
| Sleep quality | Moderate (recent clinical studies) |
| Immunomodulation | Strong (broad beta-glucan literature) |
| Anti-inflammatory | Strong (well-documented triterpenes) |
Sciamanoverde tip: Reishi is the evening mushroom. If chronic stress keeps your nervous system wired and your sleep never quite restores you, this is your ally. Take it 1 to 2 hours before bed, as part of an evening ritual alongside a herbal tea and a few minutes of conscious breathing.
The Reishi I recommend is an extract with the triterpene content stated on the label. Take it in the evening.
3. Cordyceps (Cordyceps militaris): the energy mushroom
Cordyceps has a fascinating and slightly unsettling backstory. In the wild, Cordyceps sinensis grows by parasitising insect larvae high up on the Tibetan Himalayas. Tibetan herders noticed that the yaks who ate it were stronger and more resilient, and started taking it themselves³.
Cordyceps shot to fame in 1993, when the Chinese women’s athletics team broke three world records. Their coach revealed that the athletes were taking Cordyceps as part of their preparation³.
Today we use Cordyceps militaris, lab-grown on a plant substrate, as effective as sinensis but ethical and sustainable.
What the research says:
- Cordyceps improves oxygen use at the cellular level by increasing ATP production (the “energy currency” of your cells)³
- A 2010 RCT in sedentary adults showed a significant improvement in aerobic capacity (VO2max) after 3 weeks
- Cordycepin has shown significant anti-inflammatory and antioxidant properties
- Recent studies suggest a supporting effect on adrenal function, potentially useful for anyone living with chronically disrupted cortisol³
| Benefit | Evidence |
|---|---|
| Energy and physical stamina | Moderate (RCT + studies on athletes) |
| Oxygen use (VO2max) | Moderate (RCT in sedentary adults) |
| Anti-inflammatory | Strong (well-studied cordycepin) |
| Adrenal support | Emerging (early studies) |
Sciamanoverde tip: Cordyceps is the morning mushroom. If you wake up already tired, the kind of tired coffee won’t fix, Cordyceps works on a deeper level, supporting cellular energy production. It’s not a stimulant: no caffeine spike, no crash. It’s steady support.
For morning cellular energy, choose Cordyceps militaris grown on a plant substrate, with guaranteed cordycepin.
4. Chaga (Inonotus obliquus): the shield mushroom
Chaga grows on the birches of the boreal forests of Siberia, Scandinavia and North America. It looks like a lump of black charcoal clinging to the trunk, but under that dark surface it hides a rust-coloured interior, packed with antioxidants.
Siberian peoples have used it for centuries as a tonic, and they call it the “mushroom of immortality”, yes, another one. Chaga and Reishi share that title, but for different reasons.
What the research says:
- Chaga has one of the highest ORAC values of any food ever tested, higher than blueberry, cacao or açai
- Its polysaccharides have shown significant immunomodulating activity, affecting both the innate and the adaptive response
- It contains betulin and betulinic acid (from the birch it grows on), compounds with documented anti-inflammatory and antiviral properties
- Early studies show an effect on reducing oxidative stress and protecting cellular DNA
Chaga is the mushroom for anyone looking for protection: from inflammation, from free radicals, from the wear that time and stress put on the body.
5. Turkey Tail (Trametes versicolor): the gut mushroom
Turkey Tail, named for its striped, fan-shaped body, is probably the most studied medicinal mushroom in the world when it comes to immunity. In Japan it has been approved as a complementary support in oncology (PSK/Krestin) since 1977.
But the reason I include it here is different: Turkey Tail is a powerful prebiotic.
What the research says:
- Turkey Tail’s polysaccharopeptides (PSP and PSK) modulate the gut microbiome, increasing the beneficial populations of Bifidobacterium and Lactobacillus
- A 2014 study showed that Turkey Tail acts as a prebiotic, improving the diversity of the gut microbiota⁵
- It’s among the mushrooms with the strongest evidence for immunomodulation, with over 400 published studies
The gut microbiome is central to digestive well-being, and far beyond it. Turkey Tail is one of the most natural ways to feed it.
How to choose a medicinal mushroom supplement: 5 criteria
The medicinal mushroom market is booming, and unfortunately, not all products are equal. Here’s what to check before you buy:
| Criterion | What to look for | Red flag |
|---|---|---|
| Part used | Fruiting body (the actual “mushroom”), it holds the highest concentration of active compounds | “Mycelium on grain”, more starch than active compounds |
| Type of extract | Dual extraction (hot water + alcohol), needed to pull out both beta-glucans and triterpenes | Raw, unextracted powder, low bioavailability |
| Beta-glucan content | Declared on the label, at least 20 to 30% | No mention of active compounds |
| Certifications | Organic, heavy-metal testing, third-party analysis | No certification, untraceable production |
| Origin | Controlled cultivation or certified wild harvest | Undeclared origin, suspiciously low prices |
Sciamanoverde tip: Be wary of products promising “5 mushrooms in 1 capsule” at a low price. To get an effective dose of each mushroom, you’d need amounts that simply won’t fit in a single capsule. Better to choose 1 or 2 mushrooms for your specific needs and take a proper dose, rather than a microdose of everything.
Which mushroom should you choose? The quick guide
| If your need is… | Your mushroom is… | When to take it |
|---|---|---|
| Brain fog, trouble focusing | Lion’s Mane | Morning |
| Anxiety, chronic stress, insomnia | Reishi | Evening |
| Fatigue, low energy | Cordyceps | Morning |
| Inflammation, ageing, protection | Chaga | Morning or afternoon |
| Gut, microbiome, immune defences | Turkey Tail | With meals |
| Stress + brain fog (combo) | Lion’s Mane + Reishi | Lion’s Mane in the morning, Reishi in the evening |
| Energy + focus (combo) | Cordyceps + Lion’s Mane | Both in the morning |
How to weave them into daily life: the mushroom ritual
Medicinal mushrooms aren’t pills to gulp down in a hurry. In tradition, preparing them was an intentional act, a daily ritual of paying attention to yourself.
Three ways to bring them in:
1. In your morning coffee or cacao
Stir a teaspoon of Lion’s Mane or Cordyceps powdered extract into your coffee, ceremonial cacao or warm plant milk. The flavour is earthy and subtle, it blends in without taking over.
2. As an evening tea
Dissolve Reishi extract in hot water with a little honey and fresh ginger. Drink it as the last gesture of your evening, alongside your ritual, whether that’s smudging, breathing or journaling.
3. In capsules, with consistency
If the taste isn’t for you, extract capsules work just as well. What matters is consistency: medicinal mushrooms work over time. The first effects show up after 2 to 4 weeks, but the deeper benefits emerge after 2 to 3 months of regular use.
Sciamanoverde tip: Don’t chase the instant hit. Medicinal mushrooms work nothing like caffeine, with no sudden “kick”. They work the way nature does: slowly and deeply, building over time. After a month of Lion’s Mane, you don’t notice the change until you realise you’ve read a whole chapter without getting distracted. After a month of Reishi, you notice nothing until you realise you fall asleep in 10 minutes instead of 45.
Precautions and contraindications
Medicinal mushrooms are generally safe and well tolerated, but a few precautions matter:
- Pregnancy and breastfeeding: insufficient data, better to avoid or consult your doctor
- Anticoagulant medication: Reishi and Chaga can have a mild blood-thinning effect, consult your doctor if you take warfarin or similar
- Immunosuppressants: since mushrooms modulate the immune system, anyone on immunosuppressant drugs should check with their specialist
- Surgery: stop Reishi and Chaga at least 2 weeks before any operation (for the blood-thinning effect)
- Allergies: rare, but possible. Start with low doses and watch your reaction
As with any natural support, medicinal mushrooms do not replace medical advice for serious conditions. They are a support, a powerful, ancestral, validated one, but a support all the same.
The return of a forgotten kingdom
For thousands of years, mushrooms were humanity’s silent allies. Then we forgot them, relegated to the kitchen or feared as poison.
Now science is rediscovering what Ötzi knew 5,000 years ago, what Taoist monks practised in mountain temples, what Siberian elders passed down generation after generation.
Mushrooms work through intelligence rather than force, the same intelligence that let them connect the forests, break down dead matter into new life, and survive every mass extinction the planet has thrown at them.
Maybe it’s time to stop ignoring the oldest teachers on Earth. And simply start to listen.
⚠️ This article is for informational purposes and does not replace the advice of a doctor or healthcare professional. Always consult a qualified professional before making significant changes to your lifestyle or stopping any ongoing treatment.
Scientific sources
- Mori, K. et al. (2009). Improving effects of the mushroom Yamabushitake (Hericium erinaceus) on mild cognitive impairment. Phytotherapy Research, 23(3), 367-372.
- Wachtel-Galor, S. et al. (2011). Ganoderma lucidum (Lingzhi or Reishi): A Medicinal Mushroom. In: Herbal Medicine: Biomolecular and Clinical Aspects. 2nd ed., Ch. 9, pp. 71-83. CRC Press.
- Tuli, H.S. et al. (2014). Pharmacological and therapeutic potential of Cordyceps with special reference to Cordycepin. 3 Biotech, 4(1), 1-12.
- Guggenheim, A.G. et al. (2014). Immune Modulation From Five Major Mushrooms: Application to Integrative Oncology. Integrative Medicine, 13(1), 32-44.
- Pallav, K. et al. (2014). Effects of polysaccharopeptide from Trametes versicolor and amoxicillin on the gut microbiome of healthy volunteers. Gut Microbes, 5(4), 458-467.
