The EU is increasingly present in the daily lives of Europeans. Going well beyond its original programme of economic integration, it strives to protect and promote a ‘European way of life’, a concept that remains as blurry as it is contested. In doing so, the EU faces sensitive normative questions that it is not fully equipped to answer: what space should be left to risk, harm and pleasure in everyday activities and whether the plurality of lifestyle practices, including unhealthy ones, is something worth preserving. How to effectively control lifestyle-related health risks in a supranational and diverse polity such as the EU, through the use of regulatory powers primarily geared towards economic integration ? That is the central question adressed in this thesis.