Lesley Gray, Maria Stubbe, Lindsay Macdonald, Rachel Tester, Jo Hilder, Anthony C Dowell

INTRODUCTION Obesity is overtaking tobacco smoking in New Zealand as the leading potentially modifiable risk to health. International obesity guidelines recommend that health professionals opportunistically encourage weight management with their patients. However, research shows consistently low rates of weight management discussion, suggesting that health professionals may not be realising their full potential to address obesity. AIM To identify communication strategies used by General Practitioners (GPs) to open the topic of weight and weight management in routine consultations. METHODS A secondary analysis was conducted of 36 video-recorded consultations in general practices, selected for relevance from a database of 205 consultations. Content and interactional analysis was conducted in the context of the entire consultation. RESULTS The topic of weight was initiated more often by GPs than patients and was raised mostly once or twice in a consultation and occasionally as many as six times. GPs employed opportunistic strategies twice as often as they used structured strategies. DISCUSSION This study of naturally occurring consultations confirmed GPs do engage in opportunistic discussions about weight. However, such discussions are challenging and interactionally delicate. Highlighting the clinical relevance of weight appears to be effective. The high frequency of patient contact with GPs provides opportunity to reach and work with people at risk of chronic conditions associated with excess weight. Further research is required to identify suitable training and brief intervention tools for use in routine consultations that may be beneficial for both GPs and patients.