Encouraging Healthy and Sustainable Dietary Substitutions

Food Selection Clinical Trial

Official title:

Encouraging Healthy and Sustainable Dietary Substitutions: A Randomized Experiment With Emerging Adults

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT06175026
• Other study ID #: 71737
• Secondary ID: K01HL158608
• Status: Completed
• Phase: N/A
• Start date: January 22, 2024
• Est. completion date: February 2, 2024

Study information

• Verified date: February 2024
• Source: Stanford University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The aim of this study is to examine emerging adults' responses to dietary substitution messages about health, the environment, or both health and the environment.

Description:

This online study will examine emerging adults' responses to dietary substitution messages about 4 different topics. Participants will be randomized to 1 of 4 topic arms: 1) Control (neutral topic, not related to health or the environment); 2) Health topic; 3) Environment topic; 4) Health and Environment topic. Participants will view messages about each of 4 dietary substitutions: replacing red meat with chicken or vegetarian options; replacing dairy milk with non-dairy milk; replacing juice with whole fruit; and replacing sugar-sweetened beverages with water. For each dietary substitution, participants will view 2 messages about their assigned topic, with the 2 messages shown in random order. Participants will rate each message on perceived message effectiveness (primary outcome).

Recruitment information / eligibility

• Status: Completed
• Enrollment: 1732
• Est. completion date: February 2, 2024
• Est. primary completion date: February 2, 2024
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 25 Years

Eligibility

Inclusion Criteria:

• Age between 18-25 years

• Reside in the United States

• Ability to complete a survey in English

Exclusion Criteria:

• Older than 25 years; younger than 18 years

• Reside outside of the United States

• Unable to complete a survey in English

Related Conditions & MeSH terms

• Food Selection

Intervention

Behavioral:
• Health messages
Participants view messages about the health impacts of certain dietary substitutions.
• Environmental messages
Participants view messages about the environmental impacts of certain dietary substitutions.
• Health and environmental messages
Participants view messages about the health and environmental impacts of certain dietary substitutions.
• Neutral messages
Participants view neutral messages unrelated to the health and environmental impacts of certain dietary substitutions.

Locations

Country	Name	City	State
United States	Stanford School of Medicine	Palo Alto	California

Sponsors (2)

Lead Sponsor	Collaborator
Stanford University	National Heart, Lung, and Blood Institute (NHLBI)

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Perceived message effectiveness	Participants will rate each message on perceived message effectiveness (PME) for encouraging participants to make the target dietary substitution. PME will be assessed with 4 items [the text shown in brackets will be tailored to each substitution]: How much does this message discourage you from wanting to [eat beef and pork / drink juice / drink cow's milk / drink sugary drinks]?; How much does this message make [eating beef and pork, etc.] seem unpleasant to you?; How much does this message make you concerned about the effects of [eating beef and pork, etc.]?; How much does this message make you want to [eat chicken or vegetarian options instead of beef and pork, etc.]?; The response options for each item are: 1=Not at all, 2=Very little, 3=Somewhat, 4=Quite a bit, 5=A great deal.; Investigators will average responses to these 4 items to create a perceived message effectiveness score. Higher scores indicated higher perceived message effectiveness.	The survey will take up to 20 minutes.