The Look AHEAD (Action for Health in Diabetes) program produces clinically significant weight loss and improvements in glycemic control, blood pressure, and quality of life in patients with type 2 diabetes (1,2), yet lifestyle interventions are time-intensive and less effective when delivered with lower intensity in primary care settings (2). Obesity guidelines endorse using technology to increase the reach of effective lifestyle interventions in the population (2), and therefore we conducted a pilot evaluation of a partly virtualized intervention that delivered content from the 16 initial group sessions of the Look AHEAD program along with 6 monthly visits with a registered dietitian. The theoretical framework for this pilot evaluation was self-determination theory, which is an organismic approach to human motivation that has applications to health-behavior change and maintenance. We posited that perceptions of the virtual clinician (VC) as supportive of the basic …