摘要:More and more frequently, consumer information is used as a management tool for health risks, through labelling, prevention or consumption recommendation programmes. We took a special interest in the tool used at an international level for the management of risk linked to the presence of methyl-mercury in fish. In this case, a recommendation aims to modify consumption behaviours in order to reduce the consumption of methyl mercury contaminated species, while providing enough intakes of Omega-3 fatty acids through consumption of other species. Via a “field” experiment, this paper shows the limited efficacy of such a recommendation.