The FDA's supplement rulebook is public, specific and widely misquoted — by marketers and sceptics alike. Reading it directly settles most arguments.
The rulebook tour.
Key Takeaways
- Structure-function claims are notified, disclaimed — never approved.
- Disease language in supplement marketing is the enforceable line.
- Warning letters are public, searchable and instructive reading.
- Five minutes of footprint-checking screens most sellers.
The Claims Rules
The permitted lanes: STRUCTURE-FUNCTION claims (normal-function support language — notified to FDA, not approved, disclaimer-mandatory), NUTRIENT-content claims (the 'high in vitamin C' class with defined thresholds), qualified HEALTH claims (the narrow evidence-reviewed lane mostly populated by foods), and the forbidden lane — DISEASE claims (diagnose-treat-cure-prevent language reserved for drugs; enforcement letters quoting products' own words). The disclaimer's exact text is statutory — its presence marking the lane, not confessing weakness.
The Manufacturing Rules
The GMP layer: 21 CFR Part 111's requirements (identity testing, specification systems, batch records, complaint files — the testing chapter's legal floor), facility registration universality, adverse-event reporting mandates (serious events reportable — the MedWatch pipeline), and NEW-dietary-ingredient notifications (the pre-1994-grandfather line making ingredient history legally relevant). Inspection findings are public records — enforcement's paper trail.
Enforcement in Practice
The teeth's shape: WARNING letters (the public first-strike — searchable, instructive reading; disease-claim quotations being their commonest exhibit), recalls (voluntary-and-mandated — the alert chapter's feeds), import refusals and injunctions up the ladder, and the enforcement-priority reality (drug-spiked products, serious-harm cases and egregious claims heading the queue — the structural honesty that routine shelf-checking is not the FDA's model; the system leans on complaint-and-event signals).
Checking a Product's Footprint
The buyer's public-records toolkit: the WARNING-letter database searched by company (five minutes revealing claim-history), recall feeds filtered to supplements, the dietary-supplement label database (NIH's archive of actual labels), and certification registries atop the government layer. A clean footprint plus candid disclosure plus third-party marks is the buyable profile this section keeps converging on.
Rules verdict: specific lanes, real teeth, public paper trails — and a five-minute footprint check that most buyers never run.
Frequently Asked Questions
What can supplement labels legally claim?
Normal-function support ('maintains', 'supports') with the mandatory disclaimer — never disease treatment or prevention; the lanes are specific and enforced by letter.
Does FDA test supplements before sale?
No — no pre-market product review exists. GMP rules govern manufacturing; enforcement runs post-market on inspections, complaints and adverse events.
How do I check a supplement company's record?
Search FDA's warning-letter database and recall feeds by company name, then cross-check certifications — the public footprint takes minutes.
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Visit the Official Order PageSources & Further Reading
Educational content only — not medical advice. Sources are general references on the topic, not studies of the BreathiZen formula.