Annals of Behavioral Medicine

, Volume 51, Issue 1, pp 57–66

Targeted Messages Increase Dairy Consumption in Adults: a Randomized Controlled Trial

  • Mary E. Jung
  • Amy E. Latimer-Cheung
  • Jessica E. Bourne
  • Kathleen A. Martin Ginis
Original Article

Abstract

Background

Dairy consumption amongst North Americans aged 30–50 has been declining. Targeted messages have been identified as a cost-efficient method through which to increase health-enhancing behavior, such as dairy intake.

Purpose

The aim of this study is to assess the utility of targeted, framed, efficacy-enhancing messages on calcium consumption from dairy in adults aged 30–50 in a randomized controlled trial.

Method

Seven hundred and thirty-two individuals (463 women, 269 men; Mage = 40.57 years) were randomly assigned to one of five message conditions: (1) gain-framed (GF), (2) loss-framed (LF), (3) self-regulatory efficacy-enhancing (SRE), (4) GF plus SRE (GF + SRE), or (5) LF plus SRE (LF + SRE). Conditions were separate for men and women. Each condition received an emailed message on four consecutive days. Calcium intake from dairy, self-regulatory efficacy, outcome expectations, and outcome value were measured at baseline, 1 and 4 weeks following the intervention.

Results

Calcium intake from dairy significantly increased from baseline to week 1 post-intervention in all conditions (p < .001). A significant message condition x time interaction (p = .04) revealed that increases seen in the LF + SRE condition were maintained at week 4. All social cognitive constructs increased following the intervention (ps < .01). Self-regulatory efficacy (β = .28, p < .01) and outcome expectations (β = .19, p < .01) were significant predictors of subsequent calcium intake (week 4) from dairy.

Conclusion

Taken together, it appears as though ensuring message content is targeted to the specific population’s beliefs and motives is of importance when developing behavioral change intervention material.

Keywords

Calcium consumption Behavior change Targeting Framing Efficacy-enhancing 

Supplementary material

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Copyright information

© The Society of Behavioral Medicine 2016

Authors and Affiliations

  • Mary E. Jung
    • 1
  • Amy E. Latimer-Cheung
    • 2
  • Jessica E. Bourne
    • 1
  • Kathleen A. Martin Ginis
    • 1
    • 3
  1. 1.School of Health and Exercise SciencesUniversity of British ColumbiaKelownaCanada
  2. 2.Queen’s UniversityKingstonCanada
  3. 3.McMaster UniversityHamiltonCanada

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