The Science of Salt: A regularly updated systematic review of the implementation of salt reduction interventions (September 2016–February 2017)

Claire Johnson, Joseph A. Santos, Briar McKenzie, Sudhir Raj Thout, Kathy Trieu, Rachael McLean, Kristina S. Petersen, Norm R.C. Campbell, Jacqui Webster

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

This periodic review aims to identify, summarize, and appraise studies relating to the implementation of salt reduction strategies that were published between September 2016 and February 2017. A total of 41 studies were included as relevant to the design, assessment, and implementation of salt reduction strategies, and a detailed appraisal was conducted on the seven studies that evaluated the impact of salt reduction strategies. Of these, three were national studies or included large populations and four were conducted in communities with small participant sample sizes. Each study used a different strategy for reducing salt intake varying from category-specific sodium targets for packaged food to use of a low-sodium salt substitute to behavior change interventions. Four studies found statistically significant decreases in dietary salt intake and one study showed statistically significant decreases in mean sodium density of packaged food products. Four of the seven studies used either spot or 24-hour urine samples to measure dietary salt intake and five were conducted in East or Southeast Asia—two of which were in low- and middle-income countries. Study quality varied among the seven studies and all except one had one or more risks related to bias.

Original languageEnglish (US)
Pages (from-to)928-938
Number of pages11
JournalJournal of Clinical Hypertension
Volume19
Issue number10
DOIs
StatePublished - Oct 2017

All Science Journal Classification (ASJC) codes

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Cardiology and Cardiovascular Medicine

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