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Gluten-free diet in French adults without coeliac disease: sociodemographic characteristics, motives and dietary profile

Laëtitia Perrin 1 Benjamin Allès 1 Camille Buscail 1, 2 Catherine Ravel 3 Serge Hercberg 1, 2 Chantal Julia 1, 2 Emmanuelle Kesse-Guyot 1, *
* Corresponding author
1 CRESS - U1153 - Equipe 3: EREN- Equipe de Recherche en Epidémiologie Nutritionnelle
UP13 - Université Paris 13, INRA - Institut National de la Recherche Agronomique, CNAM - Conservatoire National des Arts et Métiers [CNAM], CRESS (U1153 / UMR_A_1125 / UMR_S_1153) - Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité
Abstract : The number of people avoiding gluten is growing in many Western countries. However, little information is available on their sociodemographic and dietary profiles. We aimed to describe sociodemographic, behavioural and dietary profiles of participants avoiding gluten in the NutriNet-Sante cohort. Participants of the NutriNet-Sante cohort - excluding coeliac patients - who completed a questionnaire about food exclusions, with complete data on sociodemographic characteristics and dietary intake were included (n 20 456). Food group consumptions and nutrient intakes according to self-reported avoidance of gluten were estimated using ANCOVA adjusted for age, sex and daily energy intake. Based on principal component analysis, three dietary patterns (DP) were identified. Association between DP and avoidance of gluten was investigated using multivariate logistic regression. All data were weighted on the French census. A total of 10 center dot 31 (95 % CI 9 center dot 90, 10 center dot 73) % of the participants declared avoiding gluten, of which 1 center dot 65 % totally. They were more likely to be women, older persons, non-smokers, to have a lower educational level and declared more food intolerances. They had higher consumption of fruit, vegetables and lower consumption of dairy products, salty/sweet and fatty foods and alcohol. After adjustments on confounders, a healthy dietary pattern was positively associated with total gluten avoidance (ORQuintile5vsQuintile1 = 14 center dot 44, 95 % CI 8 center dot 62, 24 center dot 19). Our study highlighted that, in this population, individuals who avoid gluten from their diet tend to have a diet more favourable to health. These results can serve as a basis for future studies investigating the potential consequences of a gluten-free diet in non-coeliac population.
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Submitted on : Wednesday, October 28, 2020 - 12:17:43 PM
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Laëtitia Perrin, Benjamin Allès, Camille Buscail, Catherine Ravel, Serge Hercberg, et al.. Gluten-free diet in French adults without coeliac disease: sociodemographic characteristics, motives and dietary profile. British Journal of Nutrition, Cambridge University Press (CUP), 2019, 122 (2), pp.231-239. ⟨10.1017/S0007114519001053⟩. ⟨hal-02981960⟩



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