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Plant-Based Defaults

NCT06554743 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 365

Last updated 2025-07-15

No results posted yet for this study

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.

Conditions

  • Choice Behavior
  • Dietary Habits

Interventions

BEHAVIORAL

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

BEHAVIORAL

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

Sponsors & Collaborators

  • Arizona State University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-03-01
Primary Completion
2022-08-12
Completion
2024-02-22

Countries

  • United States

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 NCT06554743 on ClinicalTrials.gov