The association of dietary sodium and outcome is widely studied in the general population, but less is known in hemodialysis patients. The evidence supporting daily dietary sodium intake of 2 g on hemodialysis is not strong. Mc Causland et al. found that higher dietary sodium intake was marginally associated with a higher ultrafiltration requirement and mortality, but not with blood pressure. Well-designed clinical trials are needed to examine the association of dietary sodium modification and outcomes in hemodialysis patients.