Automated Self-Administered 24-Hour (ASA24®) Dietary Assessment Tool
What is ASA24?
The Automated Self-Administered 24-hour (ASA24®) Dietary Assessment Tool is a free, web-based tool that enables multiple, automatically coded, self-administered 24-hour diet recalls and/or single or multi-day food records, also known as food diaries. To learn more about 24-hour recalls and food records, visit NCI’s Dietary Assessment Primer.
The ASA24 system consists of a respondent website used to collect dietary intake data and a researcher website used to manage study logistics and obtain nutrient and food group data files.
Since ASA24 was released in 2009, more than 6,000 studies have registered to use ASA24 and more than 521,000 recall or record days have been collected as of January 2020.
View a comparison of all versions of ASA24 to learn more about the underlying nutrient and food group databases, and other features.
Who can use ASA24?
Researchers can use ASA24 for epidemiologic, interventional, behavioral, or clinical research. Clinicians can use ASA24 to collect 24-hour recalls or food records from patients. Educators may have students use ASA24 to analyze nutrient intake or compare diet assessment methods.
Want to adapt ASA24?
Researchers interested in adapting the ASA24 system for a specific situation or country should contact the ASA24 Helpdesk.
How was ASA24 developed?
NCI developed ASA24 under contract with Westat, a social science research company. ASA24 adapted the United States Department of Agriculture’s (USDA) Automated Multiple-Pass Method (AMPM) and the Food Intake Recording Software System (FIRSSt), a self-administered recall tool originally developed for children by Dr. Tom Baranowski of Baylor College of Medicine.
Learn more about ASA24:
ASA24 is a registered trademark of HHS.