NCT06175026

Encouraging Healthy and Sustainable Dietary Substitutions

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

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 1,753 (actual)
• Sponsor: Stanford University · Academic / Other
• Sex: All
• Age: 18 Years – 25 Years
• Healthy volunteers: Accepted

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.

Detailed 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).

Conditions

• Food Selection

Interventions

Type	Name	Description
BEHAVIORAL	Health messages	Participants view messages about the health impacts of certain dietary substitutions.
BEHAVIORAL	Environmental messages	Participants view messages about the environmental impacts of certain dietary substitutions.
BEHAVIORAL	Health and environmental messages	Participants view messages about the health and environmental impacts of certain dietary substitutions.
BEHAVIORAL	Neutral messages	Participants view neutral messages unrelated to the health and environmental impacts of certain dietary substitutions.

Timeline

• Start date: 2024-01-22
• Primary completion: 2024-02-02
• Completion: 2024-02-02
• First posted: 2023-12-18
• Last updated: 2024-11-12
• Results posted: 2024-11-12

Locations

1 site across 1 country: United States