DSLD (Dietary Supplement Label Database)
The NIH's public database of dietary supplement labels, the single source of truth behind every number on this site. DSLD is survey-sourced plus voluntary manufacturer submissions -- not an exhaustive market census -- and every value in it is manufacturer-declared on the label, not independently lab-tested.
Example
The current analysis is based on the January 16, 2026 DSLD release, covering 214,780 labels ever recorded.