Association Between Self-Reported Dietary Intake Questionnaires and Objective Measures in an Inpatient Cross-Sectional Study.

ABSTRACT: Background/Objectives: Measuring dietary intake through self-reported questionnaires can be inaccurate and influenced by sex, eating behavior, and the environment. Here, we compare self-report dietary intake questionnaire responses to objectively measured ad libitum dietary intake in a large, diverse population, and assess differences by sex and food-group composition. Methods: In our inpatient study, from 1999 to 2023, (n = 279) participants completed three different questionnaires assessing different aspects of food intake. Each questionnaire contained the same 77 food items belonging to one of six groups. Groups were either high-fat (HF) or low-fat (LF), then high complex carbohydrate (HCC), high protein (HP), or high simple sugar (HSS). Intake was measured based on the av

SUBMITTER: Thompson M 

PROVIDER: S-EPMC12899283 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature