Sources & how to read the evidence

This guide was built from the primary literature — clinical guidelines, randomised trials, and meta-analyses — and graded by how strong the evidence actually is. RA has excellent proven treatments alongside a busy fringe of unproven 'cures,' so where a claim is thin or a product is hyped, it says so and shows both sides.

How it was built

The approach: Every load-bearing claim comes from a named guideline, trial, or meta-analysis, with the evidence dots (●●●●● = strong and replicated, down to ○○○○○ = essentially unproven) reflecting study design, size, and replication. Figures are group averages; individuals vary widely. This is educational, not a diagnosis or a prescription — and the frontier sections (CAR-T, tolerance, the experiments) are graded as early precisely so the excitement doesn't outrun the evidence.
The key sources: What it is & causes: the ACR/EULAR materials and reviews on RA pathogenesis, the shared-epitope/smoking/ACPA literature, and the mucosal-origins and pre-clinical-RA work. Diagnosis & strategy: the 2010 ACR/EULAR classification criteria, the anti-CCP performance studies, the EULAR treat-to-target recommendations, and the TICORA trial. Drugs: the 2021 ACR and EULAR treatment guidelines, the RACAT and TEAR triple-therapy trials, and ORAL Surveillance (the JAK safety trial) with the resulting FDA boxed warning. Lifestyle & supplements: the Mediterranean-diet and omega-3 RA trials (Proudman), the Kjeldsen-Kragh fasting study, the SARAH hand-exercise trial, the smoking-RA literature, and the NCCIH natural-products reviews. Remission & the frontier: the RETRO tapering trial, the APIPPRA/PRAIRI/StopRA intercept trials, the RESET-RA vagus-nerve-stimulation trial, and the Schett CAR-T 'immune reset' work.

Educational reference — not medical advice

This guide summarises published research for general education. It is not a diagnosis, a prescription, or a substitute for care. Get persistent joint symptoms assessed early — the window of opportunity is real — and never start, stop, or change any RA medication on your own. Be especially wary of anything sold as a 'cure,' and decide everything here with a qualified rheumatologist.

The RA Guide