Do Sustainability Labels Lead to More Sustainable and Healthier Food Choices?

NCT ID: NCT05482204

Last Updated: 2022-08-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

5055 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-30

Study Completion Date

2022-04-13

Brief Summary

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This study tests the effect of two climate change menu labels, one indicating 'low climate impact' and the other indicating 'high climate impact' on ordering choices and perceptions of healthfulness of food ordered in an online randomized experiment.

Detailed Description

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The objective of this study is to examine how climate impact menu labels influence US adults' ordering and perceptions via an online randomized experiment. Participants were randomized to view one of 3 fast food menus online and then choose an item that they would like to order. One menu 'control' had QR code labels, the second had "low climate impact" labels on items with lower greenhouse gas emissions (vegetarian, chicken or fish items), the third had "high climate impact" labels on beef items. After the ordering task participants answered questions about what label they saw on the menu, how healthy they thought the item they ordered was, and how much the label discouraged them from eating high climate impact items.

Conditions

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Food Selection Attitude

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Control (QR) label

QR label on all menu items

Group Type NO_INTERVENTION

No interventions assigned to this group

Low Climate Impact Label

'Low Climate Impact' label on all chicken, fish and vegetarian menu items

Group Type EXPERIMENTAL

Low Climate Impact label

Intervention Type OTHER

Menu labels indicating low climate impact on chicken, fish, and vegetarian food items on a simulated online fast food menu.

High climate Impact Label

'High Climate Impact' label on all beef menu items

Group Type EXPERIMENTAL

High Climate Impact label

Intervention Type OTHER

Menu labels indicating high climate impact on beef food items on a simulated online fast food menu.

Interventions

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Low Climate Impact label

Menu labels indicating low climate impact on chicken, fish, and vegetarian food items on a simulated online fast food menu.

Intervention Type OTHER

High Climate Impact label

Menu labels indicating high climate impact on beef food items on a simulated online fast food menu.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* 18 years of age or older
* Member of the National Opinion Research Center (NORC) Amerispeak Panel

Exclusion Criteria

* \<18 years of age
* completed the survey in \< 1/3 of the median duration
* skipped or refused more than 50% of the survey questions
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Time-sharing Experiments for the Social Sciences

UNKNOWN

Sponsor Role collaborator

Johns Hopkins Bloomberg School of Public Health

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Julia A Wolfson, PhD

Role: PRINCIPAL_INVESTIGATOR

Johns Hopkins Bloomberg School of Public Health

Locations

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Johns Hopkins Bloomberg School of Public Health

Baltimore, Maryland, United States

Site Status

Countries

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United States

References

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Wolfson JA, Musicus AA, Leung CW, Gearhardt AN, Falbe J. Effect of Climate Change Impact Menu Labels on Fast Food Ordering Choices Among US Adults: A Randomized Clinical Trial. JAMA Netw Open. 2022 Dec 1;5(12):e2248320. doi: 10.1001/jamanetworkopen.2022.48320.

Reference Type DERIVED
PMID: 36574248 (View on PubMed)

Other Identifiers

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IRB00018722

Identifier Type: -

Identifier Source: org_study_id

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