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Epidemiology and Genomics Research Program



Researchers can no longer register new studies using the US version of ASA24-2018; however, new studies can still be registered using ASA24-Canada-2018.

As with ASA24-2016, the user interface for the 2018 version employed a responsive design, meaning the ASA24 system could be used on smartphones and tablets, in addition to laptops and desktops. This allows a broad range of participants to enter dietary intake data at any time and from any location with internet service.

The following features were new to the 2018 versions of ASA24:

Other features of the US version of ASA24-2018 include:

  • The user interface was written in HTML5. This enabled ASA24 to work on all common web browsers. Previous versions required users to download the plug-in Microsoft Silverlight.
  • Respondents could complete single- or multi-day food records (also known as food diaries) and 24-hour recalls, which expanded the types of studies and applications using ASA24.
  • Researchers had the option to provide respondents with a Respondent Nutrition Report, which showed how their intake on the day they completed a 24-hour recall or food record compared to country-specific dietary guidance and nutrient requirements. For food records, researchers provided the report to the respondent after obtaining it from the researcher website. For 24-hour recalls, the respondent could view the report directly after completing their recall.
  • Data on supplement intake were collected at the same time as foods and beverages, rather than in a separate module. This allowed participants to report supplement intake as part of what they consume on a given day, with corresponding time stamps that may have been useful in examining patterns of intake across the day.
  • Respondents could filter search results by food, beverage, and supplement categories. We also revised food terms to be more intuitive to help respondents more easily find foods, beverages, and supplements.
  • Intuitive icons were used to facilitate editing of food terms and details.
  • Tips and guidance were available within the respondent website via a Help Center and icons on the screen; and Quick Start Guides are available for study staff and respondents.
View summary of database changes between the 2016 and 2018 versions

Learn more:

Researchers are encouraged to report bugs that are encountered using either the respondent or researcher websites.

View a detailed comparison of all versions of ASA24

The US version of ASA24-2018 was funded by the following NIH Institutes and Offices: National Cancer Institute’s Division of Cancer Control and Population Sciences; National Heart, Lung, and Blood Institute; National Institute on Alcohol Abuse and Alcoholism; National Institute of Diabetes and Digestive and Kidney Diseases; and NIH’s Office of Behavioral and Social Sciences Research and Office of Dietary Supplements.

ASA24 is a registered trademark of HHS.