Nagano et al. (2010) Study Analysis

Clinical Trial: Depression, Anxiety & Cognitive Function

Lion's Mane (Hericium erinaceus) - Double-blind, Placebo-controlled RCT

Full Citation

Nagano, M., Shimizu, K., Kondo, R., Hayashi, C., Sato, D., Kitagawa, K., & Ohnuki, K. (2010). Reduction of depression and anxiety by 4 weeks Hericium erinaceus intake. Biomedical Research, 31(4), 231-237.

DOI: 10.2220/biomedres.31.231 | PubMed ID: 20834180

Participants

  • Total: 30 Japanese women
  • Age Range: 40-60 years
  • Condition: Menopausal symptoms, mild depression/anxiety
  • Exclusion: Severe depression, medication use

Intervention

  • Dosage: 250mg tablets, 3x daily
  • Total Daily: 750mg
  • Extract Type: Standardized H. erinaceus
  • Duration: 4 weeks
  • Placebo: Identical appearance

Study Design

  • Type: Double-blind RCT
  • Duration: 4 weeks treatment
  • Primary Outcomes: Depression/anxiety scores, cognitive function
  • Assessment: Standardized questionnaires

Primary Results

Significant Reduction in
Depression Scores
Significant Reduction in
Anxiety Scores
Improved Cognitive
Function
4 Weeks
Treatment Duration

Clinical Significance

This study demonstrates that Lion's Mane can support mood balance and cognitive function, showing benefits for both depression and anxiety symptoms. The relatively short 4-week duration suggests that Lion's Mane may provide relatively quick mood support benefits.

The study's focus on menopausal women suggests that Lion's Mane may be particularly beneficial during times of hormonal changes, when mood and cognitive function can be affected.

Safety Profile

  • Adverse Events: None reported
  • Tolerability: Excellent, well-tolerated
  • Compliance: High adherence rate

What This Means for You

This research suggests that Lion's Mane may help support mood balance and reduce feelings of depression and anxiety. The study showed benefits after just 4 weeks of use, which is relatively quick compared to many mood-supporting supplements. While individual results may vary, this research indicates that Lion's Mane may be a valuable natural option for supporting emotional wellness and cognitive function, particularly during times of stress or hormonal changes.

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