Cranberry juice decreases disease activity in women with rheumatoid arthritis.

Objectives: Studies have shown that cranberry (Vaccinium macrocarpon) has antiinflammatory and antioxidant effects; however, to our knowledge, the effects of cranberry juice consumption have not been studied in patients with rheumatoid arthritis (RA). The aim of this study was to verify the effect of cranberry juice consumption on several inflammatory biomarkers and on the disease activity of patients with RA.

Methods: A prospective study was conducted with 41 women diagnosed with RA.