2009 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 is conducted under the National Food and Nutrient Analysis Program (NFNAP) and is supported largely by funding from nine Institutes and Offices of the NIH and the USDA. During 2009 the Nutrient Data Laboratory (NDL) completed the acquisition, evaluation, and dissemination, in SR22, of a database subset of vitamin D values for 4,100 foods, including the 2,900 foods required for the development of the Food and Nutrient Database for Dietary Studies (FNDDS). The FNDDS was subsequently used to estimate the intakes of vitamin D by NHANES participants (for the first time), to be used by the Institute of Medicine committee reviewing Dietary Reference Intakes for Vitamin D.
During 2009, over 1,300 samples representing 67 food items and quality control materials were sampled in 12 locations and sent to laboratories for specific nutrient analysis. All food samples were analyzed for up to 100 nutrients and other bioactive components. This project provided complete, accurate, and current data for frequently consumed Key Foods and nutrients of public health significance. In addition, NDL scientists have released the Dietary Supplement Ingredient Database (DSID-1) for adult multi-vitamins. Samples were also collected for prenatal multivitamins and omega-3 dietary supplements. These data for dietary supplements will be used to update and expand the Dietary Supplement Ingredient Database. Support for the NFNAP through NIH and it's institutes and offices has enabled NDL to generate current and nationally representative data for many food items and dietary supplements in the rapidly changing market place. Data are received in monthly reports, and periodically shared with collaborators. Frequent communication with collaborators takes place through email, conference calls, and quarterly meetings.