Fat-related dietary behaviour: behavioural science concepts for public health practice

Despite being central to Canadian health objectives, reduction in fat consumption remains a difficult health target to reach. Strong epidemiological data associate high dietary fat intake with cardiovascular disease (CVD). There has been considerable interest in applying concepts from psychosocial models of behaviour change to enhance the effectiveness of CVD prevention programs. This review suggests that the determinants of fat-related dietary behaviours can be integrated within a comprehensive model useful to public health practice. The Transtheoretical Model (TTM) is suggested as an organizing framework for variables empirically related to diet. The TTM holds that dietary change occurs through successive stages, defined according to people's readiness to adopt new behaviours. Furthermore, readiness to change can be explained by variables that are amenable to public health interventions. The integration of important variables within the TTM framework may prove helpful in designing, implementing and evaluating effective dietary change intervention programs in the community.