2008 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) which is supported by funding from nine Institutes and Offices of the NIH and the USDA. This agreement supports the generation of original analytical data for foods as well as dietary supplements. In 2008, Nutrient Data Laboratory (NDL) sampled numerous foods from retail outlets in 12 locations according to the NFNAP multi-stage sampling plan. Items included popular items from four national chains of family restaurants, 15 species of seafood to complete FDA’s list of the top 20 most frequently consumed fish, fruit and vegetables to complete FDA’s list of the top 20 most frequently consumed raw fruit and vegetables, enhanced chicken breasts, pouch-pack tuna and salmon, frozen pizzas, dark chocolate, infant formulas, and Latino produce items. The seafood and infant formulas were sampled as part of the project to develop a database of vitamin D values and will also be analyzed for other selected nutrients. Latino fruit samples were collected as part of a collaboration with the National Cancer Institute to develop a database of Latino foods. All food samples were analyzed for up to 100 nutrients and other bioactive components. During 2008, over 600 samples representing 113 food items were sent to laboratories for specific nutrient analyses, including quality control materials. These nutrient data and other NFNAP data from previous years were used to add or update 67 food items in Release 21 of the USDA National Nutrient Database for Standard Reference. In addition, NDL scientists have completed the sampling and analysis of 115 adult multi-vitamin mineral products. Also, the sampling and analysis of childrens’ dietary supplement products is completed. Twenty major fish-oil and flaxseed oil products from six locations nationwide have been procured. The data for dietary supplements will be used to develop the Dietary Supplement Ingredient Database. Funding support from NIH, including that of the NIH Office of Dietary Supplements, 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 are received in monthly reports: Frequent communication with collaborators takes place through email and conference calls.