Cognitive Restraint and History of Dieting Are Negatively Associated with Organic Food Consumption in a Large Population-Based Sample of Organic Food Consumers.

Organic food consumption has risen in many countries during the past decades, but individual motives leading to these choices remain unclear. This study aimed to evaluate the associations between cognitive restraint (CR), history of dieting and organic food intake. This cross-sectional analysis included 20,085 organic food consumers from the NutriNet-Sante cohort. CR (range score 1-4) was evaluated by the Three-Factor-Eating-Questionnaire and practice of dieting (never vs. past/current) was assessed by an ad hoc questionnaire. Frequencies of organic food intake overall and in 16 food groups were assessed by the Organic Food Frequency Questionnaire. Linear regression and analysis of covariance (ANCOVA) were performed to investigate the association between CR score, history of dieting and contribution of organic food intake to the total food intake. A lower overall contribution of organic options in the diet was observed in women with higher levels of CR (beta = -3.61%, 95% CI: -4.32; -2.91 for 1 point of CR, p < 0.001) and with a history of dieting (31.1 +/- 0.4% in past/current vs. 32.6 +/- 0.3% in never dieters; p = 0.001). Consistent associations were observed in men with a history of dieting (26.4 +/- 0.8% in past/current vs. 28.7 +/- 0.4% in never dieters; p = 0.012). Overall, individuals-in particular women-with higher CR scores or with a history of dieting selected fewer organic food options. Our findings illustrate the complexity of potentially concurrent motives to food choices, in a context of increasing interest in organic food consumption.