Tag: Asa24

In 2025, the ASA24 system had collected more than 1.1 million recall or record days. Whether you can go back into ASA24 and retrieve your records later depends entirely on your study type and completion status.

Nutritional assessment, which aims to accurately measure dietary intake, is often technically challenging due to recall bias and other issues. The 24 hour dietary assessment tool, however, is a retrospective method used to collect detailed information on all foods and beverages consumed by an individual during the past 24 hours.

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.

Did you know that the National Cancer Institute (NCI) provides the ASA24 dietary assessment tool to the research community at no cost? This guide explains exactly how much does the ASA24 program cost and what other expenses to budget for in your study.

Developed by the National Cancer Institute (NCI), the Automated Self-Administered 24-hour (ASA24) Dietary Assessment Tool has been used in over 670 studies monthly, as of 2025, to collect high-quality dietary data. This freely available, web-based tool automates the process of collecting detailed dietary information from participants for research, clinical, and educational use.