IL6 and plasma cell myeloma: Another potential mechanism is via the effect of alcohol on inflammatory markers; moderate to high alcohol consumption (15–30 g/day) is inversely associated with circulating interleukin‐6 (IL‐6), a cytokine which can stimulate the growth of myeloma cells and has been associated with poor prognosis, and circulating C‐reactive protein (CRP) a surrogate for IL‐6 [46–48].