Subjects' Perception in Quantifying Printed and Digital Photos of Food Portions.

ABSTRACT: Although digital photos have the potential to improve the precision of reported portions in dietary assessment, there are few studies investigating its accuracy in comparison to printed photos. The aim of this study was to evaluate the perception of adults in quantifying food portion sizes using printed and digital photos, displayed on computer-screens and tablets. In total, 1165 evaluations were performed for 60 photos of portion sizes in Brazil. Each participant (n = 58) attended two sessions in the study center, with an interval of at least one week. In each session, twelve food portions were prepared and randomly evaluated by each participant in its printed and digital forms. The mean error (difference between the estimated and true portions) was not significantly different between the

SUBMITTER: Nichelle PG 

PROVIDER: S-EPMC6471321 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature