Culture and public health: the case of nutrition policy

Background Public health policies are deeply shaped by cultural norms, values, and understandings of responsibility. Culture operates both as a constraint on policy feasibility and as a justificatory resource for legitimising interventions. Despite growing recognition of these dynamics, few analyses systematically examine the mechanisms through which culture mediates nutrition policy design and public acceptability. Purpose This commentary argues that culture plays a central role in shaping how nutrition policies are framed, justified, and perceived across different contexts. It draws on comparative examples from France, the United Kingdom, the United States, and Pacific Island countries to illustrate the analytical structure of this relationship. Scope The analysis examines two interconnected dimensions: culture as a constraint that determines the moral and political boundaries of acceptable intervention (the Overton Window), and culture as a resource mobilised to legitimise and frame health policy. A comparative table and conceptual framework illustrate variation in cultural framing, policy instruments, and acceptability rationale across four policy contexts. Conclusion Recognising the reciprocal relationship between culture and policy is essential for developing ethically defensible, context-sensitive, and effective public health interventions. Policies attuned to existing cultural values are more likely to gain acceptance and, in turn, to reshape cultural norms sustainably. Keywords public health policy; nutrition; culture; food policy; obesity prevention; health behaviour; intervention acceptability; nanny state; Overton Window; policy framing