Benefits of Reishi

Evidence-Based Benefits

• Immune modulation — a 2016 Cochrane review (Jin et al.) analyzed reishi as adjunctive therapy in cancer patients and found it increased CD3, CD4, and CD8 T-cell counts and NK cell activity across 5 RCTs
• Sleep and relaxation — Cui et al. (2012, n=48) found reishi extract (1.8g/day for 8 weeks) significantly improved subjective sleep quality and reduced fatigue in neurasthenia patients
• Anti-inflammatory activity — ganoderic acids inhibit NF-κB and COX-2 pathways, reducing inflammatory cytokine production (Cör et al., 2018 review)
• Hepatoprotective effects — preclinical and early clinical evidence shows reishi triterpenes protect liver cells from toxin-induced damage and reduce elevated liver enzymes
• Adjunctive cancer support — while NOT a cancer treatment, reishi may improve quality of life and immune parameters when used alongside conventional therapy (Jin et al., 2016)

What the Research Says

Reishi has moderate clinical evidence primarily for immune modulation. The most rigorous evidence comes from Jin et al. (2016) Cochrane review, which analyzed 5 RCTs of reishi in cancer patients and found improved immune cell counts but insufficient evidence for tumor regression. Cui et al. (2012) published a notable RCT showing sleep and fatigue improvements in neurasthenia patients. A key quality concern: many reishi supplements contain mycelium grown on grain rather than fruiting body, which may have lower triterpene content. Dual-extraction (hot water + alcohol) products are considered superior for capturing the full spectrum of bioactive compounds.

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