Lifestyle & Consumer Education · Reference Guide
How Dietary Supplements Are Regulated by the FDA vs Prescription Drugs
Published by Payarmin Clinical Editorial Board · Last Verified: October 16, 2026
Key Clinical Takeaways
- Supplements are regulated as a subcategory of food under DSHEA 1994, not as pharmaceutical drugs.
- The FDA does not 'approve' dietary supplements prior to commercial distribution.
- Facilities must strictly adhere to cGMP manufacturing rules under 21 CFR Part 111.
- Structure/function claims are permitted, but disease treatment/cure claims are illegal.
Table of Contents
DSHEA 1994: The Regulatory Framework
A common misconception is that dietary supplements must receive pre-market approval from the FDA, identical to prescription pharmaceuticals. In reality, the Dietary Supplement Health and Education Act (DSHEA) of 1994 established that supplements are regulated under food law rather than drug law.
Manufacturers do not require FDA approval before marketing a dietary supplement. However, the manufacturer is legally responsible for ensuring that all ingredients are safe, unadulterated, and truthfully labeled.
Manufacturers do not require FDA approval before marketing a dietary supplement. However, the manufacturer is legally responsible for ensuring that all ingredients are safe, unadulterated, and truthfully labeled.
Current Good Manufacturing Practices (cGMP)
While pre-market approval is not required, manufacturing standards are strictly regulated under 21 CFR Part 111 (Current Good Manufacturing Practice in Manufacturing, Packaging, Labeling, or Holding Operations for Dietary Supplements).
Compliant facilities—such as the United States facility producing Payarmin—must conduct identity testing, purity assays, heavy metal screening (lead, arsenic, cadmium, mercury), and microbiological tests on every production lot.
Compliant facilities—such as the United States facility producing Payarmin—must conduct identity testing, purity assays, heavy metal screening (lead, arsenic, cadmium, mercury), and microbiological tests on every production lot.
Structure/Function vs Disease Claims
Federal law strictly separates legal 'structure/function' claims from prohibited 'disease claims.' A supplement may legally state that it 'supports healthy glucose metabolism' or 'promotes insulin sensitivity.' However, claiming that a supplement 'treats, cures, or reverses diabetes' is illegal and violates both FDA regulations and FTC truth-in-advertising statutes.
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