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Dietary Supplement Laboratory Quality Assurance Program: Exercise L Final Report



Laura J. Wood, Melissa M. Phillips, Catherine A. Rimmer


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 supplements community to improve the accuracy of measurements for demonstration of compliance with various regulations including the dietary supplement current good manufacturing practices (cGMPs). Exercise L of this program offered the opportunity for laboratories to assess their in-house measurements of nutritional elements (iodine), contaminants (lead and arsenic), water-soluble vitamins (biotin), fat-soluble vitamins (lutein and zeaxanthin), fatty acids (omega-3 and -6), and botanical marker compounds (chlorogenic acid, flavonoids, and naphthodianthrones) in foods and/or botanical dietary supplement ingredients and finished products.
NIST Interagency/Internal Report (NISTIR) - 8154
Report Number


Wood, L. , Phillips, M. and Rimmer, C. (2016), Dietary Supplement Laboratory Quality Assurance Program: Exercise L Final Report, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed July 12, 2024)


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Created October 20, 2016, Updated November 10, 2018