Accuracy of estimates of food portion size using food photographs--the importance of using age-appropriate tools.

Abstract

BACKGROUND In order to obtain a measure of nutrient intake, a measure or estimate of the amount of food consumed is required. Weighing foods imposes a large burden on subjects, often resulting in underreporting. Tools are available to assist subjects in providing an estimate of portion size and these include food photographs. The application of these tools… (More)

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