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Impact of Front-of-pack Nutrition Labelling on Consumer Purchases

NCT ID: NCT02546505

Last Updated: 2015-12-02

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

900 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-10-31

Study Completion Date

2015-11-30

Brief Summary

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Introducing Front-Of-Pack (FOP) nutrition labelling, providing simplified information on nutritional content at a glance, in order to help consumer make informed choices, has been identified as of major interest by public health specialists. In France, a recent report to the Minister of Health has proposed the introduction of a Front-of-Pack nutrition label, the 5-Colour nutrition label. Existing studies on FOP labels mainly focused on assessment of consumers' acceptability/liking and understanding. If most of the studies on purchasing behavior, conducted in real supermarkets, suggested a positive effect of FOP labels on consumers' food choices, the impact of the 5-CNL has not been evaluated.

The main objective is to evaluate the impact of a Front-of-pack nutrition label, the 5-Colour Nutrition Label on consumer purchases in a controlled environment close to real-world settings. Nutritional quality of the items purchased will be compared using the Food Standards Agency nutrient profiling system (FSA score). The study relies on a comparison across three independent samples :

* Control group: The current situation with current way brands show or not nutritional information on Front of Pack (FoP) - without consumer information
* Intervention n°1: Introduction of a Front-of-pack nutrition label (5-CNL) on selected categories of foods. No additional consumer information
* Intervention n°3: Introduction of a Front-of-pack nutrition label (5-CNL) on selected categories of foods. Additional consumer information specifically targeting nutritional information and explaining the 5-CNL will be performed (this information will consist in a concept shown to respondents before the shopping session).

Participants are recruited in the street through quota sampling, based on criteria of gender, age and purchasing habits on the products categories selected for the introduction of the FOP nutrition label.

The study relies on LabStores®, i.e. shopper laboratory stores, which are controlled study spaces in which a store is recreated in reality.The real lab store mimics a store environment with real shelves, product, and cash register, and presents several product categories in a realistic shopping environment. At the end of the shopping session, the respondents proceed to the cashier but don't actually pay for their purchases.

The selected foodstuffs come from actual retailers' brand products available on the French market. Three categories of products were selected, based on expected variability in nutritional quality of the products and logistic criteria (exclusion of fresh products):

* Breakfast cereals
* Sweet biscuits
* Salty snacks The impact of the different labels on nutritional quality (FSA score, calories, lipids, saturated fatty acids, sugars, proteins, fibre, sodium) of the shopping cart is investigated using one way ANOVA. Pairwise comparisons among FOP labels are assessed by using Tukey's multiple comparisons tests.

All tests of significance are two-sided, and a P value \<0.05 is considered significant. Statistical analyses are performed using SAS software (version 9.3; SAS Institute Inc.).

Detailed Description

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Conditions

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Consumer Behavior Nutrition Labeling

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Blinding Strategy

NONE

Study Groups

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Control

The current situation with current way brands show or not nutritional information on Front of Pack (FoP) - without consumer information

Group Type NO_INTERVENTION

No interventions assigned to this group

Intervention n°1

Introduction of a Front-of-pack nutrition label (5-CNL) on selected categories of foods. No additional consumer information

Group Type EXPERIMENTAL

Front-of-pack nutrition labeling

Intervention Type OTHER

Introduction of a Front-of-pack nutrition label (5-CNL) on selected categories of foods.

Intervention n°2

Introduction of a Front-of-pack nutrition label (5-CNL) on selected categories of foods. Additional consumer information specifically targeting nutritional information and explaining the 5-CNL will be performed (this information will consist in a concept shown to respondents before the shopping session).

Group Type EXPERIMENTAL

Front-of-pack nutrition labeling

Intervention Type OTHER

Introduction of a Front-of-pack nutrition label (5-CNL) on selected categories of foods.

Consumer information

Intervention Type OTHER

Information specifically targeting nutritional information and explaining the 5-CNL is presented to the subject (this information will consist in a concept shown to respondents before the shopping session).

Interventions

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Front-of-pack nutrition labeling

Introduction of a Front-of-pack nutrition label (5-CNL) on selected categories of foods.

Intervention Type OTHER

Consumer information

Information specifically targeting nutritional information and explaining the 5-CNL is presented to the subject (this information will consist in a concept shown to respondents before the shopping session).

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Adults \>18 years old
* Usually purchasing the selected categories of foods (Breakfast cereals, appetizers, biscuits)

Exclusion Criteria

* Not used to purchasing the selected categories of foods
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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BVA nudge unit

UNKNOWN

Sponsor Role collaborator

University of Paris 13

OTHER

Sponsor Role lead

Responsible Party

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Serge HERCBERG

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

References

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Julia C, Blanchet O, Mejean C, Peneau S, Ducrot P, Alles B, Fezeu LK, Touvier M, Kesse-Guyot E, Singler E, Hercberg S. Impact of the front-of-pack 5-colour nutrition label (5-CNL) on the nutritional quality of purchases: an experimental study. Int J Behav Nutr Phys Act. 2016 Sep 20;13(1):101. doi: 10.1186/s12966-016-0416-4.

Reference Type DERIVED
PMID: 27645372 (View on PubMed)

Other Identifiers

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EREN-BVA

Identifier Type: -

Identifier Source: org_study_id