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Can J Cardiol. 2014 May;30(5):507-12. doi: 10.1016/j.cjca.2014.02.003. Epub 2014 Feb 13.

The population risks of dietary salt excess are exaggerated.

Author information

  • 1Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada; Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada. Electronic address: andrew.mente@phri.ca.
  • 2Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada; HRB-Clinical Research Facility, National University of Ireland, Galway, Galway, Ireland.
  • 3Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada; Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Hamilton Health Sciences, Hamilton, Ontario, Canada.

Abstract

Policy positions on salt consumption (based largely on the association of sodium and blood pressure [BP]) has remained unchanged since the 1970s, until recently. However, this is beginning to change as new evidence emerges. The evidence supports a strong association of sodium with BP and cardiovascular disease events in hypertensive individuals, the elderly, and those who consume > 6 g/d of sodium. However, there is no association of sodium with clinical events at 3 to 6 g/day and a paradoxical higher rate of events at < 3 g/day. Therefore, until new evidence emerges, the optimal range of sodium consumption should be considered to be between 3 and 6 g/d. Population-wide sodium reduction is not justified in countries such as Canada.

Copyright © 2014 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.

PMID:
24786440
[PubMed - indexed for MEDLINE]
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