Public health nutrition remains a place where empirical work about natural phenomena (e.g., nutrients) co-exists with studies interrogating how meaning is constructed. Framing is a process by which people orient their thinking about a problem (1) , and framing analysis is the study of how people's ideas might be influenced, which is a key function of advocacy. Framing analysis could thus be helpful to public health nutrition professionals seeking to mitigate health problems. The purpose of this commentary is first, to introduce public health nutrition specialists to framing analysisits origins, theory and methods, and second, to consider its usefulness as a tool for advocacy on public health nutrition problems. Framing analysis Allen's definition of frame (or framing) analysis is a theoretical, methodological and critical tool for exploring processes of meaning making and influence among governmental and social elites, news media and the public (2). Framing analysis comes from the social sciences, particularly political science, communication/media studies and sociology; the origins of framing are attributed to sociologist Goffman in 1974 (3). Goffman's work produced two somewhat distinct threads of inquiry: the cognitive and the social-relational. Public health nutrition retains these threads in its work today with cognition studies attentive to how eating behaviours are learned and postmodernist research revealing how the social construction of meaning around food is influenced by contexts in the social environment. Two successive generations of framing theorists have sharpened framing analysis and its application in the public policy realm, notably Americans Martin Rein and Donald Schön for their introduction of frame-critical policy analysis (4) and European scholars DeWulf et al. (5) and Merlijn van Hulst and Dvora Yanow (6) who represent broadening perspectives on how framing can be more actionable through greater attention to its socio-relational aspects. At the heart of the latter's critique is that there are still two threads of inquiry; on the one hand, there are 'frames' (the noun, known through coding/measurement) and on the other, 'framing' (the verb, known through critical