Face Validity of Observed Meal Patterns Reported with 7-Day Diet Diaries in a Large Population-Based Cohort Using Diurnal Variation in Concentration Biomarkers of Dietary Intake
Publication: Nutrients
Marleen A. H. Lentjes, Linda M. Oude Griep, Angela A. Mulligan, Scott Montgomery, Nick J. Wareham and Kay-Tee Khaw
6 January 2022
Summary
Researchers studied how associations between meal patterns and non-fasting triglyceride and glucose concentrations were influenced by the hour of day at which the blood sample was collected to ascertain face validity of reported meal patterns, as well as the influence of reporting bias (assessed using formula of energy expenditure) on this association.
Meal size (i.e., reported energy content), mealtime and meal frequency were reported using pre-structured 7-day diet diaries. Associations between meal patterns and concentration biomarkers can be observed when accounting for diurnal variation and underreporting. These findings support the use of 7-day diet diaries for studying associations between meal patterns and health.
