What is the ASA24 hour?
                                
                                
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                                The National Cancer Institute (NCI) released the Automated Self-Administered 24-hour (ASA24) dietary assessment tool in 2009 to standardize and streamline data collection for nutrition research. The ASA24 hour refers to the use of this tool for completing a self-administered 24-hour dietary recall, a key method for capturing an individual's food and beverage intake over the preceding day.