Plant-Based Defaults

Arizona State University (ASU)

Status: Completed

Conditions: Dietary Habits; Choice Behavior

Treatments: Behavioral: Default Veg; Behavioral: Default Meat

Study type: Interventional

Funder types: Other

Identifiers

NCT06554743

STUDY00016889

Details and patient eligibility

About

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.

Enrollment: 365 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Academic event attendee

Exclusion criteria

• None

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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365 participants in 2 patient groups

Default Veg

Experimental group

Description:

Received a plant-based meal as the default option on the event RSVP form that required participants to pre-select their meal choice

Treatment:

Behavioral: Default Veg

Default Meat

Active Comparator group

Description:

Received a meal with meat as the default option on the event RSVP form that required participants to pre-select their meal choice

Treatment:

Behavioral: Default Meat