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This article describes and analyzes social perceptions regarding food risks in Catalonia (Spain). In particular it uses the narratives of informants to determine which foods are perceived as dangerous and how, when, where and why this perception of risk develops. Through a qualitative research study, we explored how lay discourses are constructed and managed, creating diverse imaginaries regarding food risk that do not always coincide with the biomedical view. It is highlighted that food risk is not always associated with the dangers of progress or industrialization, nor is it necessarily focused on the dichotomous debate of "industrially produced food" versus "natural food"; rather food risk perceptions revolve around a series of possibilities that are also related to the production, distribution, preparation and/or consumption of food.

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Human exposure to and contamination by environmental toxic compounds generates discourses and practices that merit greater attention. In this article, we assess internal chemical contamination and the risk of toxic effects as an experience related to the production of meaning in everyday life. Drawing on the analysis of semantic networks of narratives from semi-structured interviews conducted with 43 informants in Catalonia, Spain, we consider participants' perceptions of the health risks of toxic compounds, including social discourses on exposure, toxicity, and internal chemical contamination, and on responsibilities, consequences, and proposed strategies for controlling toxic compounds. Informants' narratives on the relationships between nature and nurture suggest that they no longer perceive rigid boundaries separating the human body from the external environment and its chemical pollutants.