Author Interviews, Cancer Research, JAMA, Nutrition / 23.10.2018 Interview with: "Sunday market in Paris: all organic food" by Richard Smith is licensed under CC BY 2.0Julia Baudry & Emmanuelle Kesse-Guyot PhD Centre de Recherche Epidémiologie et Statistique Sorbonne Paris Cité, Institut National de la Santé et de la Recherche Médicale (INSERM) U1153, Institut National de la Recherche What is the background for this study? What are the main findings? Response: Among the environmental risk factors for cancer, there are concerns about exposure to different classes of pesticides, notably through occupational exposure. Organic foods are less likely to contain pesticide residues than conventional foods, and studies have showed that an organic diet reduces exposure to certain pesticides (Baudry et al 2018, Oates et al 2014, Curl et al 2015). In the general population, the primary route of exposure is diet, especially intake of conventionally grown fruits and vegetables. However, few studies have examined the association of organic food consumption with cancer risk. In a population of 68 946 French adults from the NutriNet-Santé study, we found a reduction of 25% of cancer risk among consumers with a high frequency of organic foods compared to consumers with a low frequency, after accounting for many factors (such as lifestyle, diet and sociodemographic factors). Specifically a 34% and 76% decrease in risk was observed for post-menopausal breast cancer and all lymphomas, respectively, among frequent organic food consumers compared to consumers with a low organic food consumption frequency. (more…)