Nutrients (Sep 2021)

Associations between Digital Health Intervention Engagement and Dietary Intake: A Systematic Review

  • Tessa Delaney,
  • Matthew Mclaughlin,
  • Alix Hall,
  • Sze Lin Yoong,
  • Alison Brown,
  • Kate O'Brien,
  • Julia Dray,
  • Courtney Barnes,
  • Jenna Hollis,
  • Rebecca Wyse,
  • John Wiggers,
  • Rachel Sutherland,
  • Luke Wolfenden

DOI
https://doi.org/10.3390/nu13093281
Journal volume & issue
Vol. 13, no. 9
p. 3281

Abstract

Read online

There has been a proliferation of digital health interventions (DHIs) targeting dietary intake. Despite their potential, the effectiveness of DHIs are thought to be dependent, in part, on user engagement. However, the relationship between engagement and the effectiveness of dietary DHIs is not well understood. The aim of this review is to describe the association between DHI engagement and dietary intake. A systematic search of four electronic databases and grey literature for records published before December 2019 was conducted. Studies were eligible if they examined a quantitative association between objective measures of engagement with a DHI (subjective experience or usage) and measures of dietary intake in adults (aged ≥18 years). From 10,653 citations, seven studies were included. Five studies included usage measures of engagement and two examined subjective experiences. Narrative synthesis, using vote counting, found mixed evidence of an association with usage measures (5 of 12 associations indicated a positive relationship, 7 were inconclusive) and no evidence regarding an association with subjective experience (both studies were inconclusive). The findings provide early evidence supporting an association between measures of usage and dietary intake; however, this was inconsistent. Further research examining the association between DHI engagement and dietary intake is warranted.

Keywords