2010 Annual Report
1a.Objectives (from AD-416)
The NDL will provide scientific and technical expertise for acquisition, evaluation & compilation of composition data for foods and dietary supplements. NDL will develop & implement appropriate sampling strategies, define & direct the analytical program & evaluate quality of data received. Data generated will be disseminated at regular intervals by using electronic media. NDL will provide supervision of scientists, administrative support, space and additional personnel to carry out this program.
1b.Approach (from AD-416)
NDL will continue to expand and improve the databases for as many as 100 components in foods and dietary supplements to assure the representativeness & timeliness of those values. Under the comprehensive National Food & Dietary Supplement Analysis Program data for traditional components will be updated while data for emerging components will be added. These will include individual flavonoids, selenium & specific forms of Vitamin E and D and individual fatty acids. Data will be obtained through USDA-directed contracts with commercial labs & collaborative agreements with Universities and other government labs. Labs will be selected in a competitive process according their use of valid methods and quality control procedures for individual components. Research concerning the variability of nutrients in specific foods and dietary supplements will be initiated. Efforts will continue to determine the appropriate methods of data dissemination in keeping with rapidly changing computer and internet technology.
This research has been conducted under the National Food and Nutrient Analysis Program (NFNAP) and supported largely by funding from nine Institutes and Offices of the NIH and the USDA. During FY10 over 1700 sample units representing over 100 different foods---including Chinese restaurant items, large eggs, chicken nuggets, pasta sauce, soups, macaroni and cheese, white bread, tortillas, chili, mixed nuts, pulled pork, and burritos were collected from 12 locations and shipped to laboratories for analysis. Certified reference materials and matrix-specific control materials were also included with the food composites. All food samples were analyzed for up to 100 nutrients and other bioactive components. Work continued on sampling Hispanic foods from both retail grocery stores and restaurants as part of a collaboration with the National Cancer Institute to develop a database of Hispanic foods. A new sampling of eggs, in collaboration with the Egg Nutrition Center, resulted in the lowering of the cholesterol values for eggs and the updating of other nutrients. Samples of mushrooms collected in 2009 in collaboration with the Mushroom Council were analyzed for phytosterols and folate. These nutrient data and other NFNAP data generated by this agreement from previous years were used to add or update 55 food items in Release 23 of the USDA National Nutrient Database for Standard Reference.
This project provided complete, accurate, and current data for frequently consumed Key Foods and nutrients of public health significance. NIH support for the NFNAP has enabled NDL to generate current and nationally representative data for many food items and dietary supplements in the rapidly changing market place. USDA's food composition data are regarded as the foundation and benchmark for all second-generation databases concerning nutrition monitoring, nutrition research, and food policy in the U.S. Data for both foods and dietary supplements are needed to assess total nutrient intake for the U.S. population. In addition, food composition data for bioactive components are key elements in nutrition research projects which investigate the role of the intake of components to maintaining health status. Data for this project were received in monthly reports, and frequent communication with collaborators has taken place through email, periodic meetings, and conference calls.