Dietary Health Communication and Conversation Analysis: A Scoping Review

Globally, many people don't eat a healthy diet despite policies and public health frameworks deployed to improve dietary status. Healthy diets can prevent, manage, and even reverse chronic disease, highlighting the importance of health professionals addressing healthy diets in clinical consultations. Conversation analysis (CA) is a method that can be used to understand dietary talk in these clinical consultations; however, it is unclear to what extent CA has been used for this purpose. Using PRISMA guidelines, a scoping review was conducted with the aim of identifying and summarizing research where CA was used to examine the dietary health conversations between health professionals and adults. A systematic search resulted in 4161 articles retrieved, with 13 studies meeting inclusion criteria. Included studies used CA to examine a variety of phases of dietary health encounters, including dietary assessment, advice-giving and resistance to this dietary advice, and dietary (lifestyle) behavior change negotiations, with n = 6 using audio or video recording, respectively. Studies were conducted in seven countries and across primary, secondary, and tertiary settings. We highlighted that dietary talk, irrespective of purpose (e.g., evaluation, assessment, or persuasion [e.g., behavior change]), is under-researched within the CA field. This is a need for further research using CA on dietary talk across a range of settings, conditions, populations, and talk purposes to understand how health professionals impact patient dietary behaviors. Such understanding has the potential to contribute to the improvement of dietary health communication approaches and patient outcomes.