title: Measuring vitamins and minerals in dietary supplements for nutrition studies in the USA.
abstract: This article illustrates the importance of having analytical data on the vitamin and mineral contents of dietary supplements in nutrition studies, and describes efforts to develop an analytically validated dietary supplement ingredient database (DSID) by a consortium of federal agencies in the USA. Preliminary studies of multivitamin mineral supplements marketed in the USA that were analyzed as candidates for the DSID are summarized. Challenges are summarized, possible future directions are outlined, and some related programs at the Office of Dietary Supplements, National Institutes of Health are described. The DSID should be helpful to researchers in assessing relationships between intakes of vitamins and minerals and health outcomes.
authors.affiliation: Office of Dietary Supplements, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD 20892, USA. dwyerj1@od.nih.gov
authors.forename: Johanna T
authors.initials: JT
authors.lastname: Dwyer
authors.forename: Joanne
authors.initials: J
authors.lastname: Holden
authors.forename: Karen
authors.initials: K
authors.lastname: Andrews
authors.forename: Janet
authors.initials: J
authors.lastname: Roseland
authors.forename: Cuiwei
authors.initials: C
authors.lastname: Zhao
authors.forename: Amy
authors.initials: A
authors.lastname: Schweitzer
authors.forename: Charles R
authors.initials: CR
authors.lastname: Perry
authors.forename: James
authors.initials: J
authors.lastname: Harnly
authors.forename: Wayne R
authors.initials: WR
authors.lastname: Wolf
authors.forename: Mary Frances
authors.initials: MF
authors.lastname: Picciano
authors.forename: Kenneth D
authors.initials: KD
authors.lastname: Fisher
authors.forename: Leila G
authors.initials: LG
authors.lastname: Saldanha
authors.forename: Elizabeth A
authors.initials: EA
authors.lastname: Yetley
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Betz
authors.forename: Paul M
authors.initials: PM
authors.lastname: Coates
authors.forename: John A
authors.initials: JA
authors.lastname: Milner
authors.forename: Jackie
authors.initials: J
authors.lastname: Whitted
authors.forename: Vicki
authors.initials: V
authors.lastname: Burt
authors.forename: Kathy
authors.initials: K
authors.lastname: Radimer
authors.forename: Jaime
authors.initials: J
authors.lastname: Wilger
authors.forename: Katherine E
authors.initials: KE
authors.lastname: Sharpless
authors.forename: Constance J
authors.initials: CJ
authors.lastname: Hardy
mesh_terms: D019992:Databases as Topic; D019587:Dietary Supplements / Q000032:analysis*; D006801:Humans; D008903:Minerals / Q000032:analysis*; D052756:Nutritional Sciences; D014481:United States; D014815:Vitamins / Q000032:analysis*
chemical_list: D008903:Minerals; D014815:Vitamins