Reduced dietary salt for the prevention of cardiovascular disease

An earlier Cochrane review of dietary advice identified insufficient evidence to assess effects of reduced salt intake on mortality or cardiovascular events. The objectives of this review are:   1. To assess the long term effects of interventions aimed at reducing dietary salt on mortality and cardiovascular morbidity.   2. To investigate whether blood pressure reduction is an explanatory factor in any effect of such dietary interventions on mortality and cardiovascular outcomes.