An interventional study of Labelling in Diet, Healthy and Food Selection, sponsored by Centre des Sciences du Goût et de l'Alimentation. Completed at 1 site in France. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-03-09.
Sponsored by Centre des Sciences du Goût et de l'Alimentation · Not applicable, Interventional, and Prevention
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.
See attached protocol documents
155 studies on the registry are indexed under Food Preferences; 20 are open to participants now.
This study's enrollment of 133 is close to the median of 133 across 121 interventional studies indexed under Food Preferences.
Browse Food Preferences studies →Centre des Sciences du Goût et de l'Alimentation is the lead sponsor of 14 studies on the registry; 1 is open to participants now.
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Exclusion Criteria:
Food products without any label in the virtual supermarket.
Food products with an environmental label in the virtual supermarket.
Behavioral: 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.
Environmental impact of the food items selected
The environmental impact of the food selection will be calculated using the Product Environmental Footprint score for 100g of products throughout their life cycle.
Time frame: 15 minutes (the time frame denotes time taken to make the food choice task and there is no follow up)
Familiarity for the food items selected
The familiarity for each food selected will be assessed using a discrete scale from 1 (never purchased) to 5 (very often purchased).
Time frame: 15 minutes (the time frame denotes time taken to make the food choice task and there is no follow up)
Liking for the food items selected
The liking for each food selected will be assessed using a discrete scale from 1 (I don't like it at all) to 10 (I like it very much).
Time frame: 15 minutes (the time frame denotes time taken to make the food choice task and there is no follow up)
Nutritional quality of the food items selected
The nutritional quality of the food selection will be calculated using the score from the British Food Standards Agency nutrient profiling system (FSA score).
Time frame: 15 minutes (the time frame denotes time taken to make the food choice task and there is no follow up)
Level of processing of the food items selected
The level of processing of the food selection will be estimated using a food classification system based on food processing (NOVA).
Time frame: 15 minutes (the time frame denotes time taken to make the food choice task and there is no follow up)
Price of the food items selected
Price of the food selection will be calculated per 100 kcal.
Time frame: 15 minutes (the time frame denotes time taken to make the food choice task and there is no follow up)
PDFs hosted by the registry, ClinicalTrials.gov.
Plan to share: Yes — Share on Open Science Framework
Supporting information: Study protocol, Statistical analysis plan
Time frame: On publication, indefinitely
Access criteria: Open website
Data sharing details ↗ · osf.io
Ran from May 2021 to primary completion in May 2021, 0 months.
Of 92 non-industry interventional studies with no phase under Food Preferences, half reached primary completion within 5 months of starting (the median), counting those still running; a quarter within 1 and three quarters within 17. This study's 0 months is below that.
Counting every sponsor, half of 92 studies reached it within 5 months; a quarter within 1 and three quarters within 17.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Mar 2022. You cannot join it, but the record below documents what was studied.
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Centre des Sciences du Goût et de l'Alimentation