Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/20/2025

Magnesium Supplementation in Rheumatoid Arthritis

Evidence for Magnesium Deficiency in RA

  • Magnesium deficiency is listed as a potential risk factor for tendon disorders in patients with rheumatoid arthritis 1

Dietary Considerations for RA Patients

  • The American College of Rheumatology conditionally recommends a Mediterranean-style diet for RA patients, which emphasizes intake of vegetables, fruits, whole grains, nuts, seeds, olive oil, and seafood 2, 3
  • If proper nutritional status cannot be achieved through diet alone, deficiencies (including magnesium) should be appropriately corrected with supplements 4, 5
  • A "food first" approach is generally recommended over relying primarily on dietary supplements for arthritis management 2, 3

Clinical Application

  • Patients on medications that may affect magnesium status should be assessed for potential magnesium deficiency in RA patients 6
  • Magnesium supplementation should complement, not replace, standard disease-modifying antirheumatic drugs (DMARDs) 6, 3