biostudies-literatureMertens EHorizon 2020 Framework ProgrammeTiFNZonMw2https://www.ebi.ac.uk/biostudies/studies/S-EPMC6323679biostudies-literatureUnknown18(1)<h4>Background</h4>There is an increasing interest in estimating environmental impact of individuals' diets by using individual-level food consumption data. However, like assessment of nutrient intakes, these data are prone to substantial measurement errors dependent on the method of dietary assessment, and this often result in attenuation of associations.<h4>Purpose</h4>To investigate the performance of a food frequency questionnaire (FFQ) for estimating the environmental impact of the diet as compared to independent 24-h recalls (24hR), and to study the association between environmental impact and dietary quality for the FFQ and 24hR.<h4>Methods</h4>We analysed cross-sectional data from 1169 men and women, aged 20-76 years, who participated in the NQplus study, the Netherlands. They compNutrition journalFFQ versus repeated 24-h recalls for estimating diet-related environmental impact.PMC632367963369215SD01 (SHARP-BASIC)91110030Mertens EBoshuizen HCFeskens EJMGeleijnse JMKuijsten AVan't Veer PfalseFFQ versus repeated 24-h recalls for estimating diet-related environmental impact.<h4>Background</h4>There is an increasing interest in estimating environmental impact of individuals' diets by using individual-level food consumption data. However, like assessment of nutrient intakes, these data are prone to substantial measurement errors dependent on the method of dietary assessment, and this often result in attenuation of associations.<h4>Purpose</h4>To investigate the performance of a food frequency questionnaire (FFQ) for estimating the environmental impact of the diet as compared to independent 24-h recalls (24hR), and to study the association between environmental impact and dietary quality for the FFQ and 24hR.<h4>Methods</h4>We analysed cross-sectional data from 1169 men and women, aged 20-76 years, who participated in the NQplus study, the Netherlands. They comp2019-01-01T00:00:00Z2019 Jan2025-04-19T13:55:37.822Z2019-03-26T22:36:18ZS-EPMC63236793062173610.1186/s12937-018-0425-z