Cure language in supplement listings
Why "cure", "treat", and "prevent" almost always get a supplement listing suppressed, and the structure-function phrasing Amazon permits.
Whenever a supplement listing claims a product will cure, treat, or prevent a named disease, Amazon treats it as a drug claim and pulls the listing. The line is unusually sharp: even qualified phrases like "may help fight cancer" or "supports recovery from flu" land on the wrong side of the rule. The good news is that there is a narrow lane of structure-function language you can stay inside while still pitching a feature.
Why disease-state language is off-limits
FDA 21 CFR §101.93 and Amazon Style Guide §Medical claims both reserve disease-state claims (cure, treat, prevent, diagnose) for FDA-approved drugs. A supplement is not a drug, so claiming it can cure a named condition is treated as misbranding. Amazon compliance teams flag this as a critical-severity violation — the listing is usually suspended within 24 hours of the report.
The block covers more than the word "cure". Reviewers treat "reverses", "fights", "eliminates", "stops the progression of", and "prevents recurrence" as disease claims too. Even hypothetical wording ("if you suffer from migraines, try…") pulls the listing down.
The structure-function lane
Structure-function claims talk about how a nutrient affects normal body structure or function — "supports immune health", "helps maintain healthy joint cartilage", "supports restful sleep". They must be truthful, non-misleading, and paired with the standard FDA disclaimer: "This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease."
Stay inside §Body-system coverage: a single bullet can claim an effect on one named system (immune, cardiovascular, digestive). Do not stack systems in one bullet, and do not paraphrase the disclaimer away from the exact wording — Amazon reviewers flagged watered-down versions in the 2024-07-15 sweep.
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