Prevalence of low-energy reporting in the 1930s

Misreporting of foods by study participants when they self-record their diets is a ubiquitous feature of current dietary assessments. Some evidence suggests that the prevalence of misreporting, resulting in apparently low energy intakes (low energy reporting) has increased over the past three decades. Two studies conducted in England during the 1930s (Reference Widdowson1, Reference Widdowson and McCance2) are among the earliest dietary assessments of free-living subjects that used 7-d weighed intakes and rigorous methodology. This study aimed to estimate the prevalence of misreporting in the published data of these two studies...