Reports
Market-level analyses computed from every US supplement label in the NIH Dietary Supplement Label Database. Each one shows its sample size, data date, and sources — free to cite and embed.
Restricted Elsewhere New
Additives restricted by FDA or the EU that are still listed on US supplement labels.
Prenatal Vitamins New
How many prenatals include choline, iodine and DHA — and at what doses.
Kids' Supplements New
Gummies, synthetic dyes, and per-serving doses above children's upper intake levels.
Cheap Form Index
Which compounds are most often sold in their lowest-bioavailability form.
Formula Twins
Identical formulas sold under dozens of different brand names.
Gummy Tax
How much less active ingredient gummies deliver vs. capsules.
Upper Limit Watch
Products whose declared dose exceeds the adult tolerable upper intake level.
Proprietary Blends
How much of the market hides doses inside undisclosed blends.
Claims Census
The label phrases brands use most, and warning-statement coverage.
Churn
How long products stay on shelves before going off-market.
Where Supplements Come From
Which states and countries supplement brands are based in.
Reformulations New
Declared doses that changed between DSLD releases.
Form comparisons
Side-by-side market data for common forms of the same nutrient, e.g. magnesium glycinate vs. oxide.
Follow new findings with the Insights RSS feed — it updates each time the label data refreshes.