Public health work has long been focusing on school based health education and community development projects. However, there is a growing field of health education taking place in various corporations and workplaces, targeting employees. Critical perspectives on health education offer some insight into what ‘truths’ are made available to the recipients of health education messages, but what is not previously explored is how these ‘truths’ are put to work in health education interventions at corporations and workplaces, how these ‘truths’ are drawn on in the interaction with participants and how they serve to govern the participants and to engage them in governing themselves. In my study, this is explored by drawing on Foucault’s notion of governmentality, specifically the technologies of power and the technologies of the self, to examine discourses (‘truths’ or ‘regimes of truth’) of health, body, gender and education drawn on in four health education interventions targeting diet and physical activity in adults and how these discourses are negotiated on the one hand by the educators and on the other hand by the participants to govern their own and others conduct of conduct. With this study I seek to trouble taken for granted notions in health education about the subject and provide public health workers with new knowledge about health education practice, about what happens in the interaction between educators and participants in health education interventions. Methodologically I suggest new areas and methods for interrogating the phenomenon of public health/health education practice/interventions. The analysis has been executed on data consisting of field notes, interview transcripts and artifacts (documents pertaining to the interventions) from participation observations in four different health education interventions targeting diet and physical activity in adults. The results of the analysis are concerned with the truth regimes (discourses) concerning health, body, gender and education that are drawn on in the interventions and how educators and participants are positioned as these discourses are negotiated.