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24-hour recalls

A 24-hour recall is a dietary assessment tool, commonly used in nutrition research, that consists of a structured interview or standardised questionnaire in which participants are asked to recall all the food and drink they have consumed during the previous 24 hours. In comparison to other common methods such as food frequency questionnaires, 24-hour recalls provide relatively detailed information about participants’ food intakes. Important limitations include the inability to account for day-to-day variations and reliance on participants’ ability to accurately remember the food and drink they have consumed.