In this paper, we summarise previously reported findings from the MY-WAIST study, which aimed to evaluate a primary care strategy for identifying people with undiagnosed type 2 diabetes or at increased risk of developing this condition. Recruitment was unexpectedly low, but the qualitative data collected, including interviews with healthcare providers, helped to highlight some of the reasons for poor uptake of the appointments offered. Perceived barriers to recruitment included heavy workloads and competing demands in primary care. Lower uptake in people from harder-to-reach groups was identified in our quantitative findings and was also suggested by healthcare providers’ perceptions about the characteristics of patients who attended.