Impact of Front-of-Pack Nutrition Labels on Portion Size Selection: An Experimental Study in a French Cohort.

Nutritional Epidemiology Research Team (EREN), Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), U1153 Inserm, U1125, Inra, Cnam, Paris 13 University, 93000 Bobigny, France. m.egnell@eren.smbh.univ-paris13.fr. Nutritional Epidemiology Research Team (EREN), Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), U1153 Inserm, U1125, Inra, Cnam, Paris 13 University, 93000 Bobigny, France. e.kesse@eren.smbh.univ-paris13.fr. Nutritional Epidemiology Research Team (EREN), Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), U1153 Inserm, U1125, Inra, Cnam, Paris 13 University, 93000 Bobigny, France. p.galan@eren.smbh.univ-paris13.fr. Nutritional Epidemiology Research Team (EREN), Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), U1153 Inserm, U1125, Inra, Cnam, Paris 13 University, 93000 Bobigny, France. m.touvier@eren.smbh.univ-paris13.fr. Centre on Population Approaches for Non-Communicable Disease Prevention, University of Oxford, Oxford OX1 2JD, UK. mike.rayner@dph.ox.ac.uk. Nutrition, Physical Activity and Obesity Programme, WHO Regional Office for Europe, DK-2100 Copenhagen, Denmark. jewellj@who.int. Nutrition, Physical Activity and Obesity Programme, WHO Regional Office for Europe, DK-2100 Copenhagen, Denmark. rodriguesdasilvabred@who.int. Office for the Prevention and Control of Noncommunicable Diseases, WHO Regional Office for Europe, 125009 Moscow, Russia. rodriguesdasilvabred@who.int. Nutritional Epidemiology Research Team (EREN), Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), U1153 Inserm, U1125, Inra, Cnam, Paris 13 University, 93000 Bobigny, France. s.hercberg@uren.smbh.univ-paris13.fr. Public Health Department, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), 93000 Bobigny, France. s.hercberg@uren.smbh.univ-paris13.fr. Nutritional Epidemiology Research Team (EREN), Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), U1153 Inserm, U1125, Inra, Cnam, Paris 13 University, 93000 Bobigny, France. c.julia@uren.smbh.univ-paris13.fr. Public Health Department, Avicenne Hospital, Assistance Publique des Hôpitaux de Paris (AP-HP), 93000 Bobigny, France. c.julia@uren.smbh.univ-paris13.fr.

Nutrients. 2018;(9)
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Abstract

In the European Union (EU) three coloured graded Front-of-Pack labels (FoPLs), two endorsed by governments (Nutri-Score and Multiple Traffic Lights (MTL)) and one designed by industry (Evolved Nutrition Label (ENL)) are currently being discussed. This study aimed to investigate the impact of these FoPLs on portion size selection, specifically for less healthy products. In 2018, participants from the French NutriNet-Santé cohort study (N = 25,772) were exposed through a web-based self-administered questionnaire to products from three food categories (sweet biscuits, cheeses, and sweet spreads), with or without FoPLs, and were invited to select the portion they would consume (in size and number). Kruskall-Wallis tests, and mixed ordinal logistic regression models, were used to investigate the effects of FoPLs on portion size selection. Compared to no label, Nutri-Score consistently lowered portion sizes (OR = 0.76 (0.74⁻0.76)), followed by MTL (OR = 0.83 (0.82⁻0.84)). For ENL, the effects differed depending on the food group: It lowered portion size selection for cheeses (OR = 0.84 (0.83⁻0.87)), and increased it for spreads (OR = 1.19 (1.15⁻1.22)). Nutri-Score followed by MTL appear efficient tools to encourage consumers to decrease their portion size for less healthy products, while ENL appears to have inconsistent effects depending on the food category.

Methodological quality

Publication Type : Comparative Study

Metadata

MeSH terms : Food Labeling