Research synthesisLow evidenceModerate effect3 studies · 3 beneficial · 0 neutral · 0 harmful
Across 3 studies, all reported beneficial effects of Lion's Mane on cognitive function, with effect sizes ranging from small to moderate (predominantly moderate). The most robust evidence comes from a randomized controlled trial showing quicker Stroop task performance at 1.8 g/day over 28 days in healthy adults. The evidence base is small (only 3 studies), so conclusions should be considered preliminary.
- Effective dose range: 1.8 g/day
- Studied populations: healthy adults aged 18–45 years
Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. Available evidence is overwhelmingly positive — clinical literature in this area is subject to publication bias (null-result studies are less likely to be published or indexed). One study included participants with and without dementia, but findings may not generalize broadly.
Generated May 13, 2026