Can a supplement company claim its product can treat a disease?
No — that line separates a legal supplement claim from an illegal, unapproved drug claim.
No. A dietary supplement is not legally allowed to claim it diagnoses, treats, cures, mitigates, or prevents a disease. That kind of claim turns the product into an unapproved drug in the eyes of federal law, and supplements never go through the FDA's drug-approval process. What supplements can say is much narrower: a "structure/function" claim describing a general role in supporting the body, like "supports heart health" or "promotes healthy digestion" — never a promise tied to a named medical condition.
Why this line exists
Under the Dietary Supplement Health and Education Act of 1994 (DSHEA), supplements are regulated as a category of food, not as drugs. That means a manufacturer doesn't need FDA approval to put a supplement on the market — but in exchange, it loses the right to make the kind of claims drugs are allowed to make. The Federal Trade Commission, which polices supplement advertising, and the FDA, which polices labeling, split enforcement between them but agree on the same boundary.
Structure/function claims vs. disease claims
| Claim type | Allowed? | Example |
|---|---|---|
| Structure/function | Yes, if substantiated | "Calcium supports strong bones," "supports normal immune function" |
| Disease claim | No — treated as an unapproved drug claim | "Shrinks tumors," "reverses type 2 diabetes," "cures anxiety" |
| Health claim (FDA pre-authorized) | Only specific, pre-approved wording | "Adequate calcium may reduce the risk of osteoporosis" |
Even a permitted structure/function claim still has to be truthful and backed by adequate scientific substantiation — companies can't just avoid disease language and call any unsupported claim safe. And every product making a structure/function claim is required to carry a specific disclaimer: "This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease."
Who enforces this, and how
- FDA has primary authority over supplement labeling — the text on the bottle, packaging, and inserts. If a label crosses into disease-claim territory, FDA can treat the product as an unapproved new drug.
- FTC has primary authority over supplement advertising — website copy, social media, TV and print ads. Under Section 5 of the FTC Act, deceptive or unsubstantiated disease claims in ads are an unfair or deceptive practice, separate from the labeling issue.
- In practice, a company running a health-claim-heavy ad campaign can face action from both agencies at once, since labeling and advertising overlap for most online sellers.
What to do if you see this
- Screenshot the claim — the product page, the ad, or the packaging text — before it can be edited or taken down.
- Check whether the claim names a specific disease or condition ("treats arthritis," "cures insomnia") rather than a general bodily function — that distinction is what makes it reportable.
- Report labeling claims to the FDA through its MedWatch/safety reporting system, and advertising claims to the FTC at ReportFraud.ftc.gov.
- If you bought the product relying on the claim and it didn't work as advertised, you may also have a state consumer-protection or false-advertising claim, separate from the federal reporting process.
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