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Enhanced Broccoli Consumption After a Liking Norm and Vegetable Variety Message: Effects After a 24 Hour Delay.

NCT02618174 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 400

Last updated 2015-12-01

No results posted yet for this study

Summary

Encouraging individuals to eat vegetables is difficult. However, recent evidence suggests that using social-based information might help. For instance, it has been shown that if people think that others are eating lots of fruit and vegetables, that they will consume more of these foods to match the 'norm'. The purpose of this study was to determine whether a liking social norm (information about how much others like vegetables) would be effective at encouraging people to eat more vegetables and to examine whether these effects are sustained beyond initial exposure (i.e. whether the effect of the norm persists on food selection 24 hours alter).

Conditions

  • Eating Behaviour

Interventions

BEHAVIORAL

Neutral Control Condition

Message about age of University of Birmingham

BEHAVIORAL

Food-based Control Condition

Message about variety of vegetables in the world

BEHAVIORAL

Health Condition

Message about the health benefits of eating vegetables

BEHAVIORAL

Descriptive Social Norm

Message suggesting most people eat plenty of vegetables

BEHAVIORAL

Liking Social Norm

Message suggesting most people like eating vegetables

Sponsors & Collaborators

  • Economic and Social Research Council, United Kingdom

    collaborator OTHER

  • University of Birmingham

    lead OTHER

Principal Investigators

  • Jason M Thomas, PhD · University of Birmingham

Study Design

Allocation
RANDOMIZED
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2013-10-31
Primary Completion
2014-07-31
Completion
2014-07-31

Countries

  • United Kingdom

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02618174 on ClinicalTrials.gov