Nerve growth factor and cognitive support

Lion's Mane Mushroom

Hericium erinaceus (lion's mane) stimulates NGF synthesis in vitro and in animal models. Human RCTs (primarily in Japan) show modest cognitive improvement in older adults with mild cognitive impairment. Evidence is growing but remains limited to small trials.

Evidence Level B

Evidence and Risk Labels

Evidence A/B/C reflects research maturity, and risk levels reflect monitoring needs. These labels support comparison, not diagnosis or treatment decisions.

See full scoring guide

Clinical Snapshot

Effect Size
Modest cognitive improvement in MCI populations; NGF pathway effects well established preclinically
Safety
Low Risk

Rare allergic reactions reported; avoid if mushroom allergy exists. Some products are mycelium-on-grain with low hericenone content — fruiting body extracts preferred.

Research Dosing

This reflects common ranges and protocols used in published studies, not personal medical advice.

Typical Daily Dose
500-3000 mg (fruiting body extract)
Timing
With meals
Protocol Duration in Studies
12-16 weeks minimum for cognitive assessment

Fruiting body extracts are significantly more potent than mycelium-on-grain products.

Best Fit Profiles

  • cognitive support in older adults, particularly those with mild cognitive impairment

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