Research · Meta-analysis
Effect of collagen supplementation on knee osteoarthritis: an updated systematic review and meta-analysis of randomised controlled trials
What it found
Collagen reduced knee OA pain (MD −13.63) and improved function vs placebo.
- Design
- Meta-analysis
- Year
- 2025
- Sample size
- 870
- Population
- adults with knee OA
- Intervention
- oral collagen peptides
- Outcome
- pain, function
- Journal
- Clinical and Experimental Rheumatology
Citation last checked 2026-06-21.