Research synthesisModerate evidenceMixed effect size12 studies · 8 beneficial · 4 neutral · 0 harmful
Across 12 studies, 8 reported beneficial effects (predominantly small-to-moderate in size) on pain reduction, while 4 showed neutral results; no studies reported harmful effects. Evidence is most consistent for turmeric (curcumin) use in osteoarthritis and chronic pain conditions, with effects typically observed over 60–90 days. The median study duration was 90 days, and the most commonly evaluated dose was 300–1200 mg/day of curcumin or curcuminoid extracts, though many studies did not specify dose.
- Effective dose range: 300–1200 mg/day of curcumin or curcuminoid extract
- Studied populations: adults with knee osteoarthritis, chronic lower back pain, rheumatoid arthritis, and oral diseases (recurrent aphthous stomatitis, oral lichen planus)
Caveats: Available evidence is overwhelmingly positive — clinical literature in this area is subject to publication bias (null-result studies are less likely to be published or indexed). Many studies lacked dose specification and form details, limiting precision. The evidence quality for some meta-analyses was rated low or very low, and effect sizes varied substantially across conditions (small for hand OA, moderate to large for rheumatoid arthritis and knee OA). Several neutral studies had small sample sizes or focused on populations where turmeric showed no added benefit over standard care (e.g., oral lichen planus, adjunct to NSAIDs).
Generated Jul 4, 2026