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IJE Advance Access originally published online on September 5, 2005
International Journal of Epidemiology 2005 34(5):975-978; doi:10.1093/ije/dyi179
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Published by Oxford University Press on behalf of the International Epidemiological Association © The Author 2005; all rights reserved.

Commentary

Commentary: Role of salt intake in the development of high blood pressure

Paul Elliott

Department of Epidemiology and Public Health, Faculty of Medicine, St Mary's Campus, Imperial College London, Norfolk Place, London W2 1PG, UK

E-mail: p.elliott@imperial.ac.uk

The first 150 words of the full text of this article appear below.

Louis Dahl's famous graph in 1960 showing a positive linear relationship between prevalence of hypertension and mean salt intake across five population groups caught the imagination of the blood pressure research community, and it remains influential to this day. It led to an intensification of research on the role of salt in hypertension spanning anthropology, epidemiology, animal studies, studies of mechanisms and clinical trials. In his 1960 paper, Dahl encompasses much of the basic thinking underpinning current-day public health efforts to reduce sodium consumption in the population. First, he notes that daily intakes of salt among Americans and other populations were well in excess of physiological need ~1 g salt/day (17 mmol sodium) compared with the 10 g (170 mmol sodium) or more being consumed on average by a white American man, and >26 g (440 mmol sodium) by northern Japanese farmers (rates of hypertension and stroke were exceptionally high . . . [Full Text of this Article]


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