Evidence-Based Benefits
- Knee OA pain reduction — Tashiro et al. (2012, n=60) found 200mg/day oral HA significantly improved WOMAC pain and physical function scores vs. placebo over 12 months
- Joint function improvement — Nelson et al. (2015, n=40) demonstrated 80mg/day oral HA improved knee joint comfort and function in physically active adults over 8 weeks
- Synovial fluid support — oral HA is absorbed and distributed to joint tissues, where it supplements endogenous synovial fluid and may stimulate fibroblast production of HA
- Anti-inflammatory effects — HA fragments modulate inflammatory signaling in synovial tissue, reducing IL-6 and TNF-α expression in osteoarthritic joints
- Combination benefit — Sato et al. (2017) showed oral HA combined with exercise therapy provided greater OA symptom relief than exercise alone