Lion's Mane for Mood and Mental Health
TL;DR
One small human study found that Lion’s Mane may support mood and anxiety in overweight adults. Sleep quality also improved as a secondary observation. However, the study was small and had no placebo control group, so results should be interpreted with caution. Larger, well-designed trials are needed.
Evidence Rating: ⭐⭐⭐ Promising but Limited
(Preliminary signal only; study limitations are important to consider.)
What the Research Shows for Mood & Mental Health
Lion’s Mane has been investigated for potential effects on mood, anxiety, and sleep quality, primarily through its influence on nerve growth factors and inflammation pathways.
Key Studies
- Vigna, L. et al. (2019). “Hericium erinaceus improves mood and sleep quality in overweight adults: a randomised controlled trial.” Evidence-Based Complementary and Alternative Medicine. https://doi.org/10.1155/2019/7861297
Important Limitations (Vigna et al. 2019)
This study was small and did not include a placebo control group. Improvements in mood and sleep were reported, but it is difficult to determine how much was due to Lion’s Mane versus other factors. This study should be viewed as preliminary only.
Expert View
While some experts have noted potential mood-supporting properties anecdotally, most (including Dr. Andrew Huberman) emphasise that current human evidence for mood benefits remains limited and requires further rigorous study.
This is not medical advice. BioHackNZ provides general information based on published research. Always consult your healthcare provider before starting any supplement regimen. Individual results vary.
Last updated: 18 May 2026 | BioHackNZ Research Team
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