The real problem with 1 day diet records
1978
Garn, Stanley M. | Larkin, Frances A. | Cole, Patricia E.
A letter to the editor pinpoints methodological limitations of 1 day dietary records. Such records are useful in ascertaining intakes of populations and population samples, but they cannot be employed in ranking individuals or in estimating the proportion of individuals at nutritional risk. One day records may demonstrate rather large fluctuations in variability of intakes. An individual's 1 day ranking may deviate far from his ranking on a 7 day basis, thus obviating any predicted correlation of factors. Tables present data.
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