Lion's Mane Mushroom: The Ancient Brain Food Science Is Finally Catching Up To

FOCUS · Lion's Mane — History from Traditional Chinese Medicine through the Yamabushi monks, the hericenone/erinacine NGF mechanism, and the Mori/Saitsu/Docherty human trials on cognition.

mitovito Media

9/1/20265 min read

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Lion's Mane Mushroom: The Ancient Brain Food Science Is Finally Catching Up To

Estimated reading time: 7 minutes

There is a mushroom that looks nothing like a mushroom. No cap. No gills. No stem. Instead, a cascading waterfall of soft white spines that earned it the name Lion's Mane — and that has been used by Buddhist monks, Chinese emperors, and now neuroscience researchers for remarkably similar reasons: to sharpen the mind.

This is the story of Hericium erinaceus — where it came from, what it does, and why it may be the most scientifically interesting functional mushroom of the modern era.

A Discovery 2,000 Years in the Making

Lion's Mane has been documented in Traditional Chinese Medicine for over two millennia. The earliest written records appear in the Shennong Bencao Jing — the Classic of Herbal Medicine attributed to the mythological Emperor Shennong, dating to approximately 200 CE — where it is described as a tonic for the stomach, spleen, and the five internal organs (¹).

In China it is called Hóu Tóu Gū (猴頭菇) — literally "monkey head mushroom" — named for its resemblance to the head of a golden monkey. In Japan it is known as Yamabushitake — "mountain priest mushroom" — named for the Yamabushi Buddhist monks of the Shugendo tradition who consumed it during extended meditation retreats. The association with mental clarity and concentration was not incidental. These monks specifically sought out Lion's Mane for what they described as its ability to calm the mind and sharpen awareness — a claim that would not receive scientific investigation for another 1,800 years (²).

In Europe, Lion's Mane was classified and described by the Dutch botanist Christiaan Hendrik Persoon in 1794, who gave the species its first formal Latin description. The Western scientific community initially catalogued it as a culinary curiosity — its flavour, often compared to crab or lobster, made it a gourmet ingredient rather than a subject of medicinal interest (³).

The medicinal era of Lion's Mane research began in Japan in the late 1980s and early 1990s, when chemists began isolating and characterising the unique compounds responsible for its effects on the nervous system.

The Compounds That Make Lion's Mane Unique

What separates Lion's Mane from every other functional mushroom is the presence of two compound classes found nowhere else in nature: hericenones and erinacines.

Hericenones (designated A through H) are aromatic compounds found exclusively in the fruiting body — the cascade of white spines that constitutes the visible mushroom. In a landmark series of papers published between 1991 and 1996, Japanese researchers Kawagishi, Shimada, and colleagues demonstrated that hericenones stimulate the synthesis of Nerve Growth Factor (NGF) — a protein essential for the survival, maintenance, and regeneration of neurons in the brain (⁴).

Erinacines (designated A through I) are diterpenoid compounds found primarily in the mycelium. Research published in the Journal of Natural Products by Kawagishi and colleagues in 1994 showed that erinacine A is capable of crossing the blood-brain barrier — a property that distinguishes it from NGF itself, which cannot cross this barrier — and stimulates NGF synthesis from within the central nervous system (⁵).

The significance of these findings is substantial. NGF and its related protein BDNF (Brain-Derived Neurotrophic Factor) are the two most important growth factors for neuronal health. They support the survival of existing neurons, promote the growth of new neural connections, and play a central role in neuroplasticity — the brain's ability to reorganise and adapt throughout life. Compounds that stimulate NGF synthesis from within the blood-brain barrier represent a genuinely novel mechanism with no close equivalent in pharmaceutical or nutritional science.

What the Clinical Research Shows

The transition from laboratory chemistry to human clinical evidence began in 2009 with a landmark randomised controlled trial published in Phytotherapy Research by Mori and colleagues. Thirty adults with mild cognitive concerns were assigned to receive 1,000mg of Lion's Mane fruiting body extract three times daily (3,000mg total) or a matched placebo for 16 weeks. Cognitive function scores improved significantly in the Lion's Mane group at weeks 8, 12, and 16 compared to placebo. Crucially, scores declined four weeks after the intervention ended — a finding consistent with a genuine compound-level effect rather than a placebo response (⁶).

A 2019 study published in Biomedical Research by Saitsu and colleagues examined 31 adults aged 50 to 80 consuming Lion's Mane in biscuit form (equivalent to approximately 750mg extract daily) for 12 weeks. Mini-Mental State Examination scores improved significantly, and sleep quality — a secondary outcome — also showed significant improvement (⁷).

The most recent and perhaps most striking study was published in 2023 in the journal Nutrients by Docherty and colleagues. This was an acute-dose randomised crossover trial — participants received a single dose of 1.8g Lion's Mane fruiting body extract and were assessed on cognitive tasks within 60 to 90 minutes. Performance on the Stroop Task (a measure of cognitive interference suppression) and reaction time both improved significantly compared to placebo. This was the first RCT to demonstrate measurable acute cognitive effects from a single dose — a finding that has significant implications for the practical use of Lion's Mane as a pre-work or pre-study functional ingredient (⁸).

An Important Note on Extraction

The hericenone compounds that drive Lion's Mane's cognitive effects are found exclusively in the fruiting body — they are structurally absent from mycelium grown on grain substrate, which is the production method used by the majority of commercial Lion's Mane products. A 2017 analysis published in the International Journal of Medicinal Mushrooms found that mycelium-on-grain products contained primarily starch from the grain substrate and negligible quantities of the beta-glucan and hericenone content found in genuine fruiting body extracts (⁹).

mitovito FOCUS uses 100% Hericium erinaceus fruiting body hot-water extract, standardised to 30% polysaccharides. Hot-water extraction is the method used in every positive clinical trial cited in this article.

How to Use It

Lion's Mane extract powder dissolves completely in hot water, coffee, or matcha. The clinical trials used doses ranging from 750mg to 3,000mg of extract daily — a single mitovito FOCUS sachet contains 6,000mg of extract at 30% polysaccharides, providing 1,800mg of beta-glucans per serving with the full hericenone and erinacine compound profile of the fruiting body.

Morning is the optimal timing — the cognitive benefits interact most logically with the morning cortisol awakening response and the peak of daytime alertness. The Docherty 2023 acute-dose study suggests effects may be perceptible within 60 to 90 minutes of consumption.

The sustained benefits documented in the 16-week Mori trial suggest that consistent daily use over 8 to 12 weeks produces the most meaningful cumulative effect. Lion's Mane is not a stimulant. Its mechanism is growth-factor mediated — the effects compound over time rather than producing an immediate perceptible change.

The Bottom Line

Lion's Mane is the only food-derived ingredient with documented stimulation of Nerve Growth Factor synthesis via compounds that cross the blood-brain barrier. The clinical evidence base is modest in scale but unusually consistent in direction — every published randomised controlled trial has shown cognitive benefit. The extraction method and plant part (fruiting body only) are critical to efficacy. And its 2,000-year history of use for mental clarity among populations that had no knowledge of NGF suggests that the empirical wisdom of traditional medicine arrived at the right conclusion long before the science caught up.

Sources

(1) Shennong Bencao Jing. Compiled circa 200 CE. English translation: Yang Shou-zhong, Blue Poppy Press, 1998.
(2) Powell, M. (2010). Medicinal Mushrooms: A Clinical Guide. Mycology Press, UK.
(3) Persoon, C.H. (1794). Neuer Versuch einer systematischen Eintheilung der Schwämme. Römer's Neues Magazin für die Botanik.
(4) Kawagishi, H. et al. (1991). Hericenones C, D and E, stimulators of nerve growth factor (NGF)-synthesis, from the mushroom Hericium erinaceum. Tetrahedron Letters, 32(35), 4561–4564.
(5) Kawagishi, H. et al. (1994). Erinacines A, B and C, strong stimulators of nerve growth factor (NGF)-synthesis, from the mycelia of Hericium erinaceum. Tetrahedron Letters, 35(10), 1569–1572.
(6) Mori, K. et al. (2009). Improving effects of the mushroom Yamabushitake (Hericium erinaceus) on mild cognitive impairment: a double-blind placebo-controlled clinical trial. Phytotherapy Research, 23(3), 367–372.
(7) Saitsu, Y. et al. (2019). Improvement of cognitive functions by oral intake of Hericium erinaceus. Biomedical Research, 40(4), 125–131.
(8) Docherty, S. et al. (2023). The Acute and Chronic Effects of Lion's Mane Mushroom Supplementation on Cognitive Function, Stress and Mood in Young Adults. Nutrients, 15(22), 4842.
(9) Bak, W.C. et al. (2017). Beta-glucan Content and Antioxidant Activity of Mycelium and Fruiting Body Extracts of Hericium erinaceus. International Journal of Medicinal Mushrooms, 19(3).