Challenges in Developing Analytically Validated Laboratory-Derived Dietary Supplement Databases.

Area of Science:

• Analytical Chemistry
• Nutritional Science
• Public Health

Background:

• Dietary supplement (DS) content verification is crucial as label claims may not reflect actual product composition.
• Public health scientists and nutritionists need accurate data on DS constituents for exposure assessments.
• Existing databases like the Dietary Supplement Label Database (DSLD) provide label information, but lack analytical verification.

Purpose of the Study:

• To describe the challenges in creating analytically verified marketplace surveys of dietary supplement product content.
• To highlight the importance of the Dietary Supplement Ingredient Database (DSID) for accurate dietary intake estimations.
• To explore the feasibility and challenges of including botanical supplements in the DSID.

Main Methods:

• Development of the Dietary Supplement Ingredient Database (DSID) for analytical verification of DS products.
• Conducting surveys of various vitamin- and mineral-containing DSs.
• Pilot project to assess the inclusion of botanical DS products in the DSID.

Main Results:

• The DSID provides analytically derived values for supplement content, complementing the DSLD.
• Surveys of vitamin and mineral supplements have been completed and results are available.
• Challenges in selecting and analyzing botanical DS products for the DSID were identified.

Conclusions:

• Analytically verified databases like DSID are essential for accurate dietary intake assessments in epidemiologic studies.
• The DSID offers a crucial link between labeled content and actual exposure to supplement constituents.
• Future expansion of the DSID, particularly for botanical supplements, faces significant analytical chemistry challenges requiring resources and time.