Abstract
AbstractPurposeTo assess any effects of a state-wide sodium reduction intervention on sodium intake, sources of dietary sodium and discretionary salt use at a population level.MethodsData (24-h urinary sodium excretion, self-report survey, a 24-h dietary recall) were collected cross-sectionally at baseline (2016/2017) and follow-up (2020) from adults in Victoria, Australia. Intervention activities included consumer awareness advertising campaign, public debate generation via mass media, strengthening existing policy initiatives and supporting food innovation with industry.ResultsThere were 339 participants at baseline and 211 at follow-up, with 144 and 90 of participants completing a 24-h dietary recall, respectively. There was no difference in adjusted 24-h urinary sodium excretion between baseline and follow-up (134 vs 131 mmol/24 h;p = 0.260). There were no differences in the percentage of participants adding salt during cooking (63% vs 68%;p = 0.244), adding salt at the table (34% vs 37%;p = 0.400) or regularly taking action to control salt/sodium intake (22% vs 21%;p = 0.793). There were large differences in the quantity of dietary sodium sourced from retail stores (57% vs 77%,p < 0.001), and less sodium was sourced from foods at fresh food markets (13% vs 2%;p ≤ 0.001) at follow-up. No large differences were apparent for foods with different levels of processing or for food groups.ConclusionThere was no clear population-level effect of the 4-year multi-component Victorian Salt Reduction Intervention on sodium intake with Victorian adults continuing to consume sodium above recommended levels. The findings indicate that more intensive and sustained efforts aiming at the retail and food industry with national level support are likely to be required to achieve a measurable improvement in sodium intake at a state level.
Funder
National Health and Medical Research Council
Deakin University
Publisher
Springer Science and Business Media LLC
Subject
Nutrition and Dietetics,Medicine (miscellaneous)
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