Environmental Labelling in a Virtual Supermarket

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

133 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-05-25

Study Completion Date

2021-06-11

Brief Summary

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A 2-arm randomised control trial (with and without labels) will be conducted to test the effects of an environmental label on food choices in a virtual supermarket. A sample of 130 participants will take part in two shopping tasks: 1/ selection of 3 products to prepare a home-made dish, and 2/ selection of a ready-to-eat dish. These two tasks will be repeated for two scenarios: 1/ participants will be asked to select the foods for usual meals, and 2/ participants will be asked to select the foods for environmentally-friendly meals. This experimental design will allow to compare food choices in the presence vs. the absence of an environmental label and to investigate whether the label is informative and likely to help individuals to choose more environmental-friendly food options when explicitly asked to do so.

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Detailed Description

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See attached protocol documents

Conditions

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Diet, Healthy Food Selection

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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No labelling

Food products without any label in the virtual supermarket.

Group Type NO_INTERVENTION

No interventions assigned to this group

Environmental labelling

Food products with an environmental label in the virtual supermarket.

Group Type EXPERIMENTAL

Labelling

Intervention Type BEHAVIORAL

Food products in the virtual supermarket will display an environmental label on their packaging, from A (lowest impact) to E (highest impact). The label categories are based on the Product Environmental Footprint, a score recommended by the European Commission that evaluates the environmental impact of a food product based on 16 indicators calculated throughout the life cycle of the products (e.g., climate change in kg carbon dioxide eq, marine eutrophication in kg N eq, land and water use or acidification in mol H+ eq).

Instructions will introduce and explain the environmental label to the participants as "In the virtual supermarket, each product will have an environmental label. This label describes whether a product had a negative impact on the environment (green house gaz emissions, water resources depletion, etc.) from A, lowest impact, to E, highest impact.

Interventions

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Labelling

Food products in the virtual supermarket will display an environmental label on their packaging, from A (lowest impact) to E (highest impact). The label categories are based on the Product Environmental Footprint, a score recommended by the European Commission that evaluates the environmental impact of a food product based on 16 indicators calculated throughout the life cycle of the products (e.g., climate change in kg carbon dioxide eq, marine eutrophication in kg N eq, land and water use or acidification in mol H+ eq).

Instructions will introduce and explain the environmental label to the participants as "In the virtual supermarket, each product will have an environmental label. This label describes whether a product had a negative impact on the environment (green house gaz emissions, water resources depletion, etc.) from A, lowest impact, to E, highest impact.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Responsible for a substantial proportion of household grocery shopping
* Fluent in French

Exclusion Criteria

* Dietary restrictions (vegetarian, vegan, allergies, intolerance, …)
* Uncorrected eye problems
* Known symptoms of nausea and dizziness when wearing a virtual reality headset

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes