New evidence
Selenium cut rheumatoid arthritis pain by roughly 13 points on a 100-point scale in a meta-analysis of 367 patients — but no measure of inflammation budged.
This is the first decent-sized meta-analysis on selenium for RA joint pain, and the result is promising but preliminary: the pain relief was clear, yet the fact that inflammatory markers and stiffness didn't change means we still don't know why it worked or whether it generalises beyond this specific clinical group.
A meta-analysis pooling 367 rheumatoid arthritis patients found that selenium supplements reduced self-reported joint pain by about 13% on a standard pain scale, and also lowered a measure of joint tenderness. But key outcomes like morning stiffness, joint swelling, and blood markers of inflammation showed no significant change, so the pain relief can't simply be chalked up to less inflammation. Because this is the first rigorous analysis on selenium for RA pain, it's an intriguing lead — not a recommendation.
Where this fits in the evidence
This is among the first studies we've indexed on Selenium for Reduced Pain — treat it as an early signal until more research accumulates.
The study
- Meta-Analysis
- n = 367
- 2025-10
- Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS)
This is a plain-language summary of a research finding, not medical advice. Pillser surfaces research signals to help you decide what's worth investigating — always consult a qualified professional before changing what you take.