Lion's mane and BDNF: separating mechanism from marketing
- Peer reviewed
- GRADE evidence
- Independent
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Quick answer
Hericium erinaceus (lion's mane) contains compounds called hericenones and erinacines that have been shown in cell culture and rodent models to increase nerve growth factor expression. Human clinical data is limited but suggestive. Typical supplement dose is 500 to 3000 mg of fruiting body extract per day. Effects, when present, develop over weeks not days.
Compound classes
- Hericenones (fruiting body)
- Erinacines (mycelium, crosses BBB in rodent studies)
- Beta-glucans (immune modulation)
What the evidence shows
In-vitro and rodent models show NGF upregulation. One 2019 RCT in adults reported improvement on cognitive function scales after 12 weeks at 1050 mg per day.
Citations
- PMID 19773007 (BDNF mechanism study)
- PMID 30707629 (Human cognitive RCT)
FAQ
- Fruiting body vs mycelium?
- How long until lion's mane works?
- Lion's mane every day safe?