ObjectiveThis study aimed to analyse preferred sources of information on diabetes prevention programmes and to identify sociodemographic determinants influencing these preferences among adults in Poland.DesignA cross-sectional survey was carried out between 15 and 18 September 2023 using a computer-assisted web interview. A self-prepared questionnaire included 10 questions on sources of information on type 2 diabetes prevention.ParticipantsData were obtained from 1046 adults (18–82 years); 53.4% were females.ResultsMost respondents preferred email communication (46.4%), followed by a doctor or nurse (33.5%), and a letter or leaflet directly delivered to the mailbox (25.8%) for type 2 diabetes mellitus (DM2) prevention information. Younger respondents were more likely to indicate mass media (OR=1.81, 95% CI=1.12 to 2.95, p=0.01) and digital media (OR=1.65, 95% CI=1.02 to 2.67, p=0.04) as a source of information on DM2 prevention. Those who had higher education (OR=1.51, 95% CI=1.16 to 1.96, p=0.002), as well as those with chronic diseases (OR=1.50, 95% CI=1.14 to 1.97, p=0.004), were more likely to indicate digital media. Out of 10 different variables analysed in this study, passive occupational status (OR=1.43, 95% CI=1.04 to 1.96, p=0.03) as well as having chronic diseases (OR=1.51, 95% CI=1.16 to 1.96, p=0.002) were associated with higher odds of indicating healthcare workers as a preferred source of information. Marital status, having children, place of residence, household characteristics and financial status do not significantly decide communication preferences.ConclusionCommunication on DM2 prevention should be adjusted to public preferences and expectations. Tailoring interventions to different demographic groups can enhance outreach and engagement. Email emerged as a popular choice, suggesting the potential of digital communication in preventive health programmes.