Plant-Based Defaults

Not Applicable

Completed

• Conditions: Dietary Habits; Choice Behavior
• Interventions: Behavioral: Default Veg; Behavioral: Default Meat

• Registration Number: NCT06554743
• Lead Sponsor: Arizona State University

Brief Summary

In this study, participants at six different academic events were randomly assigned to one of two conditions: (1) a default meat group, where the default choice was a meal with meat and participants had the option of opting out and choosing a plant-based meal; and (2) a default veg group, where the default choice was a plant-based meal with the option of opting out and choosing a meal with meat. Based on the success of prior studies that implemented plant-based defaults through preselection, we hypothesized that more participants would choose the plant-based meal when that option was set as the default, and we hypothesized that the default intervention would be equally effective across academic institutions. We also hypothesized that the default intervention would be equally effective across demographic groups, which would help to further demonstrate the generalizability of our plant-based default intervention.

Detailed Description

Not available

Study Timeline

• Study Start: 2022-03-01
• Primary Completion: 2022-08-12
• Study Completion: 2024-02-22
• Status Verified: 2024-07
• Study First Submitted: 2024-07-29
• Study First Submitted QC: 2024-08-13
• Last Update Submitted: 2024-08-13
• Study First Posted: 2024-08-15
• Last Update Posted: 2024-08-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 365

Inclusion Criteria

• Academic event attendee

Exclusion Criteria

• None

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Default Veg	Default Veg	Received a plant-based meal as the default option on the event RSVP form that required participants to pre-select their meal choice
Default Meat	Default Meat	Received a meal with meat as the default option on the event RSVP form that required participants to pre-select their meal choice

Primary Outcome Measures

Name	Time	Method
Proportion of participants selecting the plant-based meal	Immediately during the completion of the event RSVP form	The percent (%) of participants selecting the plant-based meal option instead of the meal with meat option on the event RSVP from

Trial Locations

Locations (1)

Arizona State University; 🇺🇸 Phoenix, Arizona, United States