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Adulterated Supplements Enforcement

The enforcement of adulterated supplements in the U.S. and its effectiveness, including the role of the FDA and online marketplaces.

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Jan 14, 2026

How effective are internet marketplace takedowns and seller‑level enforcement in reducing repeat sales of supplements with hidden pharmaceutical ingredients?

Internet marketplace takedowns and seller‑level enforcement produce measurable short‑term reductions in availability of adulterated supplements but fail to reliably prevent repeat sales: the FDA’s war...