Lion's Mane Mushroom

About Lion's Mane Mushroom

Medicinal mushroom containing hericenones (fruiting body) and erinacines (mycelium) that stimulate NGF and BDNF synthesis. Early-stage evidence from small RCTs is promising but not definitive. Cognitive gains reversed after cessation in the best trial (Mori 2009, n=30). No established RDA/UL.

What Lion's Mane Mushroom supports

• 🧠May support cognitive function and memory (small RCTs in mild cognitive impairment)
• 😌May support mood and reduce anxiety (emerging evidence)
• 🛡️Contains beta-glucans that support immune function

How much Lion's Mane Mushroom to take

Clinical studies typically use 1000–3000 mg of Lion's Mane Mushroom. 1-3g/day fruiting body powder or equivalent extract. The landmark Mori 2009 RCT used 3g/day. Below 500mg is likely sub-therapeutic.

Effective range

1000–3000 mg

Forms of Lion's Mane Mushroom compared

• Fruiting body extractPremium
  Standardized to 25–30% beta-glucans; carries hericenones and erinacines.
• Dual extractPremium
  Hot-water + alcohol; captures both polysaccharides and fat-soluble triterpenes.
• Fruiting body (whole)Standard
  Whole mushroom — real bioactives but lower potency than concentrated extract.
• Hot water extractStandard
  Polysaccharide-focused; misses fat-soluble erinacines.
• Mycelium on grainBudget
  Mostly grain starch, low bioactives
• Mycelium biomassBudget
  Mostly grain starch, low bioactives

Clinical evidence

Limited clinical evidence. Only a few small clinical trials (largest n=30); cognitive gains reversed after stopping