Clinical trial NCT02586467: Messages for Increasing Dairy Consumption
Official title: Testing the Effectiveness of Targeted, Framed, -Efficacy Enhancing Messages for Increasing Milk and Milk Product Consumption in Adults Aged 30--50 Years.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Dietary Modification
Lead sponsor: University of British Columbia
Sponsor class: OTHER
First posted: 2015-10-26
Enrollment: 732
Sex: ALL
Minimum age (years): 30
Maximum age (years): 50
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: SUPPORTIVE_CARE

Brief summary: Over 35,000 Canadians, 65% of men and 72% of women aged 31-50 years fail to consume the recommended number of milk and milk product servings (≤2 servings per day). Given the wide range of health benefits associated with increased dietary intake of milk and milk products the objectives of this study were to conduct a prospective, 5-arm randomised controlled trial in order to test the effectiveness of a variety of messages for increasing milk and milk product consumption in men and women aged 30-50 years old. The five arms consisted of 4 messages that contained slightly different content specifically: 1) gain-framed message condition, 2) loss-framed message condition, 3) self-regulatory efficacy-enhancing message condition, 4) gain-framed and self-regulatory efficacy-enhancing message condition and 5) loss-framed plus self-regulatory efficacy-enhancing message condition. It was hypothesised that those who receive self-regulatory efficacy-enhancing information would consume more dairy than those who received messages without such information. Second, those who received gain-framed messages would consume more dairy as compared to those who received loss-framed messages. Third, those who received gain-framed messages that include self-regulatory efficacy-enhancing information would consume the most dairy in comparison to the other four conditions.


Eligibility criteria: Inclusion Criteria:

* Between 30 and 50 years of age
* Consume less than 2 servings of milk or milk products per day
* No health or religious reasons to avoid milk and milk products
* Regular access to the internet
* Can speak and read English

Exclusion Criteria:

* Dietary restrictions, allergies, or medical reasons for limiting dairy intake will be excluded

Primary outcomes:
measure: Changes from baseline in calcium from dairy at 1 and 4-week follow up
timeFrame: Baseline, 1-week follow-up, 4-week follow-up
Secondary outcomes:
measure: Self-Regulatory Efficacy
timeFrame: Baseline, Immedately after the Intervention (1-day), 4-Week Follow-Up
measure: Outcome Expectations
timeFrame: Baseline, Immedately after the Intervention (1-day), 4-Week Follow-Up
measure: Outcome Values
timeFrame: Baseline, Immedately after the Intervention (1-day), 4-Week Follow-Up
Other outcomes:
Locations:
city: Kelowna
country: Canada
facility: Health and Exercise Psychology Laboratory
state: British Columbia
Study officials:
References:
citation: Tversky A, Kahneman D. The framing of decisions and the psychology of choice. Science. 1981 Jan 30;211(4481):453-8. doi: 10.1126/science.7455683.
citation: Jung ME, Martin Ginis KA, Phillips SM, Lordon CD. Increasing calcium intake in young women through gain-framed, targeted messages: a randomised controlled trial. Psychol Health. 2011 May;26(5):531-47. doi: 10.1080/08870441003611544.
citation: Bandura A. Social foundations of thought and action: A social cognitive theory. NJ US: Prentice-Hall, Inc; 1986.