Debates about obesity in bioethics tend to unfold in predictable epicycles between individual choices and behaviours and the oppressive socio-economic structures constraining them. Here, we argue that recent work from two cutting-edge research programmes in microbiology and social psychology can advance this conceptual stalemate in the literature. We begin in section 1 by discussing two promising lines of obesity research involving the human microbiome and relationship partners. Then, in section 2, we show how this research has made viable novel strategies (...) for fighting obesity, including microbial therapies and dyad-level interventions. Finally, in section 3, we consider objections to our account and conclude by arguing that attention to the most immediate features of our biological and social environment offers a middle ground solution, while also raising important new issues for bioethicists. (shrink)

Medical and non-medical experts increasingly argue that individuals, whether they are diagnosed with a specific chronic disease or condition or not (and whether they are judged at minimal risk of these consequences or not), have an obligation to make ‘healthy’ food choices. We argue that this obligation is neither scientifically nor ethically justified at the level of the individual. Our intent in the article is not simply to argue against moralization of the value of prudential uses of food for nutritional (...) health, but to situate nutritional advocacy in the context of Western liberal democracy that values free choice. We have two objectives: (i) to untangle and examine the substance of discourses on ‘healthy’ food choice that simplify nutrition science and place a moral obligation on individuals and (ii) to establish a more comprehensive view of the relationship among food, ethics and health. Although critical of certain features of the liberal political and moral tradition, we argue that John Stuart Mill’s notion of experiments in living provides fertile ground for an improved ethical understanding of individual obligation and of the interconnections among food, health and well-being. (shrink)