Public Health Nutrition · 4 authors, 3 centres
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This mixed-methods study used quantitative questionnaires and qualitative interviews to explore determinants of dietary guideline adherence in Dutch adults. It found that cognitive restraint, vegetable habit strength, cooking skills, and home cooking frequency were key quantitative determinants, with qualitative data revealing additional factors like food prices and social eating, and some socio-economic variation in how these factors operate.
This mixed-methods study investigated determinants of dietary guideline adherence among Dutch adults across socio-economic backgrounds. Quantitative data (n=1492) from questionnaires were analyzed using linear regression, while qualitative data (n=24) from semi-structured interviews were analyzed via directed content analysis. Central quantitative findings indicated that higher levels of cognitive restraint, habit strength for vegetables, and cooking skills were associated with higher dietary guideline adherence. Qualitative data corroborated these determinants and additionally highlighted the roles of food prices, strong dietary habits, and the social aspect of eating. While quantitative analysis showed no socio-economic differences in the importance of key determinants, qualitative exploration suggested that cognitive restraint and vegetable habit strength were more salient for those with higher socio-economic position, whereas food prices and home cooking were more important for those with lower socio-economic position. The results provide a richer, contextualized understanding of dietary behaviours that can inform tailored public health interventions.
