Evaluating the Consistency of the French Nutri-Score Front-of-Pack Scoring System with Canadian Dietary Guidelines

Abstract

Abstract Objectives Nutrient profiling (NP) models, underpinning front-of-pack (FOP) labelling, can guide consumers towards healthier food choices and should be aligned with food-based dietary guidelines. In France, [the FSAm/HCSP NP model], underpinning the Nutri-Score (NS) FOP, ranks foods on both nutrients-to-limit (saturated fat, sodium, sugar) and nutrients-to-encourage (e.g., protein, fibre, fruits, vegetables, legumes and nuts) and was found to adequately align with dietary recommendations in Europe. However, investigations on the comparable ranking of foods by the FSAm/HCSP NP model with the new Canadian dietary guidelines is lacking. The objective was to assess the ability of the NS to discriminate the nutritional quality of foods and beverages in the Canadian food supply and their consistency with nutritional recommendations according to the Canada's 2019 Food Guidelines (CFG). Methods Using the University of Toronto Food Label Information Program 2017 database (n = 17,360), the nutritional scores for prepackaged foods and beverages were derived using the NS. These scores correspond to five grades of nutritional quality, ranging from green (A; highest quality) to red (E; lowest quality). Scores were assessed as binary where A/B were considered ‘in alignment’ with CFG recommendations while C/D/E were considered ‘not in alignment’. Results The NS system classified 21% of products as A, ranging from 99% of legumes to 0.45% of the sugars/sweets. The NS was able to discriminate the nutritional quality of foods within the same food groups (based on display of three grades represented within the Nutri-Score). Overall, there was 73% agreement between NS and CFG, ranging from 48% for combination dishes to 95% for eggs/egg substitute categories. The classification of foods according to the NS was consistent with the CFG; foods for which consumption is recommended were more favourably classified (e.g., 76% of vegetables were classified as A or B) than foods for which consumption should be limited (e.g., 79% of snacks were classified as C/D/E). Conclusions The NS FOP system is an effective tool to discriminate products across and within food categories. The classification of different food groups in the NS displayed a high consistency with the new Canadian dietary guidelines. Funding Sources Sanofi-Pasteur University of Toronto Université Paris-Descartes Collaborative Grant.