Bromelain for Exercise Recovery
Bromelain is not a proven aid for exercise recovery. The handful of small human trials are inconsistent, with objective markers of muscle damage almost always showing no benefit, so any effect remains unconfirmed.
Why this grade7-layer evidence engine
The grade reflects a thin, conflicting evidence base. Only a few small randomized trials exist (n=15-39), and most tested multi-enzyme protease blends rather than isolated bromelain, so bromelain's own contribution cannot be separated. A direct head-to-head trial against ibuprofen (PMID 12466693) found neither treatment reduced delayed-onset muscle soreness, range-of-motion loss or torque deficit.
Where signals appear, they are modest and subjective. A protease blend preserved muscle strength (about +7.6%) and another trial preserved peak torque (PMID 17685720), and a cycling study reported lower perceived fatigue (PMID 25604346) — yet objective damage markers (creatine kinase, myoglobin, soreness) were consistently null across these studies. A 1992 animal study (PMID 1548991) showed better force recovery but is preclinical only.
Authorities do not back this use. Mayo Clinic states there is no good scientific evidence supporting bromelain for muscle soreness, the US FDA treats it merely as a GRAS food enzyme, and EFSA, the NHS, WHO and major sports-medicine bodies either reject related claims or do not address recovery at all. Heavy affiliate marketing further inflates expectations beyond the data.
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 = 0.479
- tier_from_score — 依分數區間映射至 tier letter
- apply_hec_rules — 無高階證據可裁決
- tier_strict_requirement_check — Tier 條件達標，未降階
- detect_disputes — 偵測到 0 個 hard + 0 個 soft dispute
- decide_status — 依 tier + dispute 結果決定 status