Serrapeptase for Exercise Recovery
Serrapeptase has no controlled trials for exercise recovery or muscle soreness, and the post-surgical data it borrows from is inconsistent and low-quality. The evidence does not support taking it to speed athletic recovery.
Why this grade7-layer evidence engine
The grade is weak (Tier C) because every trial actually measures post-dental-surgery recovery, not exercise recovery, and the results conflict. A 2018 meta-analysis (PMID 29618875) and a 2021 industry-funded RCT (PMID 33653320, n=133) found serrapeptase improved jaw mobility (trismus) after impacted-molar extraction, but pain was no better than placebo. A 2023 GRADE-rated meta-analysis went further, finding serrapeptase reduces trismus but does NOT reduce swelling, inflammation, or pain.
Where serrapeptase has been compared head-to-head, it lost: in a 2013 RCT (PMID 23649050) dexamethasone controlled swelling and pain better. Trial quality is rated low throughout (small, old, biased), and crucially, no controlled trial of serrapeptase for muscle soreness or athletic recovery exists at all — so its popularity as a recovery supplement rests on extrapolation, not data.
Regulators reinforce the doubt. The FDA bars disease-treatment claims; the EU and UK classify serrapeptase as an unauthorised novel food and make it illegal to sell as a supplement. Japan withdrew the prescription version (Danzen/Dasen) in 2011 after post-marketing double-blind trials failed to beat placebo. Mayo, Cleveland Clinic, and Harvard take no position. Established recovery strategies — adequate sleep and managed training load — have far stronger support.
Scoring transparency
All scores computed by a 7-layer evidence engine — fully auditable▸View the full decision path (audit trail)
- compute_raw_score — 加權公式: L2×0.30 + L3×0.25 + L5×0.25 + L11×0.10 + L1×0.10 = 0.472
- tier_from_score — 依分數區間映射至 tier letter
- apply_hec_rules — 高品質 SR/MA 顯示 positive (2 篇 > 0 negative)
- tier_strict_requirement_check — Tier 條件達標，未降階
- detect_disputes — 偵測到 1 個 hard + 0 個 soft dispute
- decide_status — 依 tier + dispute 結果決定 status