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Accepted manuscript

Dietary Pattern Trajectories in French Adults of the NutriNet-Santé Cohort Over Time (2014-2022): Role of Socioeconomic Factors

Published online by Cambridge University Press:  17 October 2024

Hafsa Toujgani*
Affiliation:
Université Sorbonne Paris Nord and Université Paris Cité, Inserm, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), 93017 Bobigny, France
Justine Berlivet
Affiliation:
Université Sorbonne Paris Nord and Université Paris Cité, Inserm, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), 93017 Bobigny, France
Florine Berthy
Affiliation:
Université Sorbonne Paris Nord and Université Paris Cité, Inserm, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), 93017 Bobigny, France
Benjamin Allès
Affiliation:
Université Sorbonne Paris Nord and Université Paris Cité, Inserm, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), 93017 Bobigny, France
Joséphine Brunin
Affiliation:
Université Sorbonne Paris Nord and Université Paris Cité, Inserm, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), 93017 Bobigny, France ADEME, Agence de l’Environnement et de la Maîtrise de l’Energie), 49004 Angers, France
Hélène Fouillet
Affiliation:
Paris-Saclay University, UMR PNCA, AgroParisTech, INRAE, 75005, Paris, France
Mathilde Touvier
Affiliation:
Université Sorbonne Paris Nord and Université Paris Cité, Inserm, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), 93017 Bobigny, France
Denis Lairon
Affiliation:
Aix Marseille Université, Inserm, INRAE, C2VN, 13005 Marseille, France
François Mariotti
Affiliation:
Paris-Saclay University, UMR PNCA, AgroParisTech, INRAE, 75005, Paris, France
Julia Baudry
Affiliation:
Université Sorbonne Paris Nord and Université Paris Cité, Inserm, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), 93017 Bobigny, France
Emmanuelle Kesse-Guyot
Affiliation:
Université Sorbonne Paris Nord and Université Paris Cité, Inserm, INRAE, CNAM, Center of Research in Epidemiology and StatisticS (CRESS), Nutritional Epidemiology Research Team (EREN), 93017 Bobigny, France
*
Correspondence: Hafsa Toujgani, email : [email protected]
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Abstract

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While dietary transitions towards more plant-based diets are urgently needed, few studies have investigated current diet trajectories, based on observed longitudinal data. This study investigated current dietary transitions of French adults over an 8 years period (2014-2022), while assessing the diet quality and the role of diverse socio-economic factors.

Consumption data from 17,187 NutriNet-Santé cohort participants weighted for the French Census were collected using a food frequency questionnaire in 2014, 2018, and 2022. Adopting a gender-specific approach, consumption changes in 23 food groups were assessed over time. The diet quality was evaluated using the Comprehensive Diet Quality Index (cDQI) score, categorizing foods into “healthy” and “unhealthy”. The socioeconomic analysis targeted four food groups (red meat (including fresh beef, pork, offal, and lamb), processed meat (e.g. sausages, ham, and bacon), legumes, and wholegrain products), strongly linked to mortality risk and recognized as significant markers of the sustainable diet transition. All analyses were conducted using multi-adjusted mixed-effects models.

Consumption of some healthy plant-based foods (nuts +59 %, legumes +22%, wholegrain products +7%) significantly increased over time; while consumption of some unhealthy foods (red meat -19%, refined cereals -18%, sweetened drinks -15%) decreased. Conversely, consumption of prepared and mixed dishes (+16%), and processed meat (+35%) increased. These changes differed in magnitude between genders and translated into an improved diet quality score (cDQI). Occupational status was linked to longitudinal changes in food consumption, showing increased consumption of plant-based foods among students and higher socio-professional categories.

Our findings provide accurate data on trends and factors for targeted initiatives, guiding strategic interventions for a sustainable dietary transition.

Type
Research Article
Copyright
© The Authors 2024