PREVENTION AND / OR CONTROL OF CHRONIC.Diseases such as obesity is closely related to dietary.Intake.1 However the assessment, of individual or.Group dietary intake is a complex task because it.Involves issues related to socioeconomic status and.Biology.2 Dietary intake assessment often attempts to.Quantify intake in addition to qualitatively assessing intake.This information is useful for planning health actions and.Formulating dietary recommendations, for populations.3 4.Nevertheless dietary surveys, have, questionable accuracy.5 6.Such methods have flaws inherent to dietary.Assessment and no, gold standard is available yet. Studies.That use more than one type of concomitant dietary survey.Lead to better data reliability.7 In addition it is, common to.Attempt to validate the methods of assessing dietary intake.Using biomarkers because these are not affected by the.Biases usually present in survey data collection such as,,Recall or interviewer bias.8.The doubly labeled water (DLW) technique is a gold standard.Biomarker that allows a precise measurement of the.Total energy expenditure (TEE). 9 When an organism is in.Energy balance energy expenditure, is equal to energy intake.(EI); hence the DLW, may be used to validate methods for.Assessing usual EI accurately.10 Studies using the DLW technique.Show the limitations of assessing dietary intake.Through dietary surveys. In general the survey, methods.
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