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Impact of a Front-of-pack Nutrition Labelling on Food Purchases in Contract Catering

Impact of a Front-of-pack Nutrition Labelling on the Nutritional Quality of Purchases of Customers in Contract Catering - a Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04252898
Enrollment
2082
Registered
2020-02-05
Start date
2019-12-16
Completion date
2020-03-13
Last updated
2021-08-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Food Labeling

Keywords

Food labeling, nutritional quality, food purchases

Brief summary

This controlled trial investigates the impact of the implementation of a front-of-pack nutrition label, namely Nutri-Score, on foods and beverages sold in a contract catering in France on the nutritional quality of purchases.

Detailed description

The introduction of front-of-pack nutrition labelling is thought to help consumers making healthier food choices at the point-of-purchase. In 2017, the French government has selected the Nutri-Score as single front-of-pack nutrition label to be applied on food products sold in French supermarkets, on a voluntary basis. Some studies have found that the Nutri-Score would help consumers making healthier choices. Nevertheless, its impact has been demonstrated in experimental supermarkets and its implementation only concerns products sold in groceries and supermarkets, as it is stated in the official decree. The potential impact of the Nutri-Score in contract catering remains unknown, while this sector represents a growing share of out-of-home catering and that the promotion of the Nutri-Score in this sector is now part of the National Public Health Plan. Thus, the objective of the present study is to investigate the impact of the implementation of the Nutri-Score in contract catering restaurants on the nutritional quality of food purchases. The trial will be conducted using a quasi experimental before/after design with a comparison group. Data on purchases will be collected regularly through receipts, and the nutritional quality of purchases will be evaluated over time on two pairs of sites. In each pair of sites, one site will receive an intervention (Nutri-Score) and one site will be a control site. Within each pair, the sites will be comparable in terms of food offer and consumers profile.

Interventions

BEHAVIORALFront-of-pack nutrition label Nutri-Score

The intervention consists of displaying the Nutri-Score on dishes and pre-packed foods.

Sponsors

ELIOR GESTION
CollaboratorUNKNOWN
University of Paris 13
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Intervention model description

The trial will include four sites (two pairs, with an intervention site and a control site) and two phases. For each pair of sites: * site n°1: one control phase with no intervention followed by an interventional phase with the Nutri-Score applied on products * site n°2: control phases only, without the Nutri-Score applied during any of the two phases

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* all individuals purchasing in the contract catering restaurants will be included.

Exclusion criteria

* No

Design outcomes

Primary

MeasureTime frameDescription
Change in the overall nutritional quality of purchases over timeThrough study completion, an average of 6 monthsScore using the Food Standards Agency nutrient profiling system modified by the HCSP, allocating points depending on the amounts in unfavourable elements (energy, saturates, sugars, sodium) and favorable elements (fibres, proteins and fruits, vegetables, nuts and oils (olive, colza, nuts))

Secondary

MeasureTime frameDescription
Change in Saturated fat content of purchasesThrough study completion, an average of 6 monthsSaturated fat content of the purchases in g / 100g
Change in Sugar content of purchasesThrough study completion, an average of 6 monthsSugar content of the purchases in g / 100g
Change in Sodium content of purchasesThrough study completion, an average of 6 monthsSodium content of the purchases in mg / 100g
Change in energy content of purchasesThrough study completion, an average of 6 monthsEnergy content of the purchases in kcal / 100g
Change in Fibre content of purchasesThrough study completion, an average of 6 monthsFibre content of the purchases in g / 100g
Change in Fruit, vegetable and nut content of purchasesThrough study completion, an average of 6 monthsFruit, vegetable and nut content of the purchases in % / 100g
Change in Protein content of purchasesThrough study completion, an average of 6 monthsProtein content of the purchases in g / 100g

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026