Lion's Mane for Neuropathy

Verdict: No human evidence; not proven for neuropathy

Lion's Mane has not been shown to help peripheral neuropathy in people. Evidence is limited to laboratory and animal studies, with no human clinical trials, so it should not replace established neuropathy treatment.

U ⚫ U Unverified Insufficient Evidence

🔬Why this grade7-layer evidence engine

This claim is graded Unverified (Insufficient Evidence) because every study on Lion's Mane for nerve damage is preclinical. A rat peroneal nerve-crush model found faster functional recovery and better axon regeneration, roughly comparable to the mecobalamin control but with no statistical test reported (PMID 21941586). Two further studies showed only neurite outgrowth and axonal regrowth in cells via NGF-related signaling (PMID 25159861, PMID 30570422). These describe a biological mechanism, not a clinical effect.

Critically, no human randomized trial, meta-analysis, or systematic review has tested Lion's Mane on neuropathic pain, nerve conduction, or symptom scores. The only recent double-blind trial (PMID 40276537) studied cognition and mood in healthy adults, not neuropathy, and found no significant overall benefit, so it does not support this use.

Regulators and clinics offer no backing. The US FDA never completed its review of a Hericium erinaceus food-substance notice and has issued warning letters to firms marketing it for neurologic disease; EFSA has botanical claims on hold; and NIH ODS, Mayo, Cleveland Clinic, and Harvard Health do not address it for neuropathy. The neurotrophic rationale is plausible but clinically unproven.

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Scoring transparency

All scores computed by a 7-layer evidence engine — fully auditable
Raw score 0.45
D
C
B
A
S
← counter-evidence / ineffectiveeffective / strong evidence →
Final grade
U · Insufficient Evidence
Confidence
75%
Broadly consistent
Evidence level
E10
Mechanism / case reports / no human evidence

How strongly each layer supports this effect

lower = less supportive
L11 AI re-checkIndependent read
0.20
L2 PubMedPrimary literature
0.40
L1 ExamineGlobal benchmark
0.50
L3 MechanismPlausibility
0.50
L5 Clinical bodiesAuthoritative stance
0.55
Against Mixed Supports
View the full decision path (audit trail)
  1. compute_raw_score — 加權公式: L2×0.30 + L3×0.25 + L5×0.25 + L11×0.10 + L1×0.10 = 0.453
  2. tier_from_score — 依分數區間映射至 tier letter
  3. apply_hec_rules — 僅有 E10 級證據 (cohort/animal/mechanism),不足以下結論
  4. tier_strict_requirement_check — C 級條件未達 (需 E1-E8;實際 E10 僅機轉)
  5. detect_disputes — 偵測到 0 個 hard + 0 個 soft dispute
  6. decide_status — 依 tier + dispute 結果決定 status

📄PubMed studies (3)L2 · primary research & systematic reviews

Peripheral Nerve Regeneration Following Crush Injury to Rat Peroneal Nerve by Aqueous Extract of Hericium erinaceus
PMID: 21941586 2011 Animal Study
Finding: Earlier return of hind-limb function and superior axon regeneration / motor endplate reinnervation vs negative control; comparable to mecobalamin (Wong 2011 rat peroneal nerve-crush model). No p-value reported in abstract.
🟠 Limited quality
View on PubMed
Hericium erinaceus, a medicinal mushroom, activates peripheral nerve regeneration
PMID: 25159861 2016 Animal Study
Finding: Extract promoted neurite outgrowth and peripheral nerve regeneration via NGF-related signaling pathways; purely mechanistic, no clinical endpoint.
🟠 Limited quality
View on PubMed
Regenerative activity of Hericium erinaceus on axonal injury model using in vitro laser microdissection technique
PMID: 30570422 2018 Animal Study
Finding: Extract enhanced axonal regrowth in an in vitro laser-axotomy model; mechanism-only evidence with no in vivo or clinical neuropathy endpoint.
🟠 Limited quality
View on PubMed

🏛️Regulatory & authoritative positionsL4/L5 · FDA / EMA / NIH ODS / Cochrane / Mayo …

L4a US FDA
Cautious
At the notifier's request, FDA ceased to evaluate this notice source↗
L4d TW TFDA / 衛福部
Supportive
食品營養成份資料庫 - 猴頭菇 source↗
PMID 100% verifiedevery citation checked via NCBI Entrez
🔬3 PubMed studiesindependently re-checked by multiple sub-agents
engine_version: v1.0 claim_id: CLM-COND-neuropathy-INT-lions-mane-001 繁體中文版 →