Salt intake, stroke, and cardiovascular disease: meta-analysis of prospective studies (BMJ)

"During the past century, the evidence for the risks imposed on human health by excess salt consumption has become compelling. The causal relation between habitual dietary salt intake and blood pressure has been established through experimental, epidemiological, migration, and intervention studies. Most adult populations around the world have average daily salt intakes higher than 6 g, and for many in eastern Europe and Asia higher than 12 g. International recommendations suggest that average population salt intake should be less than 5-6 g per day." - BMJ