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Dietary Supplement Laboratory Quality Assurance Program: Exercise N Final Report



Charles A. Barber, Melissa M. Phillips, Laura J. Wood, Catherine A. Rimmer, Steven J. Christopher


The NIST Dietary Supplement Laboratory Quality Assurance Program (DSQAP) was established in collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements (ODS) in 2007 to enable members of the dietary supplement community to improve the accuracy of measurements for demonstration of compliance with various regulations, including the dietary supplement current good manufacturing practices (cGMPs). Exercise N of this program offered the opportunity for laboratories to assess their in-house measurements of nutritional elements (chromium), contaminants (arsenic, cadmium, and lead), water-soluble vitamins (folic acid), fat soluble vitamins (vitamin D2 and vitamin D3), fatty acids, and botanical marker compounds (ginsenosides) in foods and/or botanical dietary supplement ingredients and finished products.
NIST Interagency/Internal Report (NISTIR) - 8230 Rev. 1
Report Number
8230 Rev. 1


dietary supplements, quality assurance, foods, nutrition
Created October 15, 2018, Updated November 10, 2018