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Wellness and Supplement Claims on Your Website: Staying on the Right Side of FDA/FTC

Health claims website compliance for wellness and supplement brands: disease vs structure/function claims, the FDA disclaimer, FTC proof rules and rewrites.

By Mehdi Hassan7 min read

The short answer

Health claims website compliance comes down to one line: a supplement or wellness website can describe how a product supports normal body structure or function, but it can't claim to diagnose, treat, cure, mitigate or prevent a disease. Structure/function claims need the FDA disclaimer, and every claim, including testimonials and images, needs evidence the FTC would accept.

Key takeaways

  • Disease claims turn a supplement into an unapproved drug in the FDA's eyes; structure/function claims don't.
  • Structure/function claims need the standard FDA disclaimer near the claim, and the FDA must be notified.
  • The FTC judges the whole impression, so images, product names and testimonials make claims too.
  • Health benefit claims generally need competent and reliable scientific evidence, often human trials.
  • Most fixes are rewrites: describe support for normal function, and cut the disease word.

Part of Healthtech Website Design: Clinical Credibility Meets Startup Speed

What health claims can a wellness or supplement website make?

A wellness or supplement website can make structure/function claims, which describe how a nutrient or ingredient supports the normal structure or function of the body, such as calcium builds strong bones. It can't make disease claims, which say or imply that a product diagnoses, treats, cures, mitigates or prevents a disease. That line comes from the Dietary Supplement Health and Education Act, which the FDA enforces.

The FTC enforces the other half: every claim on your site, product page, ad or social post must be truthful and backed by evidence. This guide takes a copywriter's view, because most problems are fixed in the wording. It's part of our healthtech website design series. It isn't legal advice, so have counsel review your final claims.

What's the difference between a disease claim and a structure/function claim?

A disease claim names or implies a disease, or its characteristic symptoms, and says the product affects it. A structure/function claim describes the product's role in maintaining normal, healthy function without referring to a disease. The test is what a reasonable reader would take away, not just the words used.

Claim type

Example

Who regulates

What it needs

Disease claim

Lowers high blood pressure

FDA (drug rules)

Not allowed for supplements

Structure/function claim

Supports healthy circulation

FDA and FTC

FDA disclaimer, notification, evidence

Authorized health claim

FDA-approved wording on nutrient and disease risk

FDA

Exact authorized wording

General wellness claim

Helps you build a calmer evening routine

FTC; FDA wellness policy for devices

Truthful, substantiated

Nutrient content claim

High in vitamin C

FDA

Must meet defined levels

Wellness apps and devices have a parallel line. The FDA's general wellness policy treats low-risk products promoting a healthy lifestyle differently from those that claim to treat or diagnose a condition. Mentioning a specific disease can change which side you're on.

How do you rewrite a disease claim into a compliant claim?

Rewrite a disease claim by removing the disease, describing the normal function the product supports and making sure you can prove what's left. Sometimes there's no compliant version, and the honest answer is to cut the claim.

Disease claim

Why it fails

Possible rewrite

Relieves anxiety

Anxiety disorders are diseases

Supports a sense of calm (if supported)

Prevents colds and flu

Names diseases

Supports normal immune function

Reduces joint pain from arthritis

Names a disease and its symptom

Supports joint comfort and flexibility after exercise

Lowers cholesterol

Treats a disease marker

Helps maintain cholesterol levels already in the normal range

Fights insomnia

Insomnia is a condition

Supports restful sleep

Detoxes your liver

Implies treatment and is hard to substantiate

Usually no compliant version; cut it

What does the FDA disclaimer need to say on a supplement website?

Each structure/function claim for a dietary supplement needs the standard FDA 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. If you have several claims, the plural version is used. The FDA also expects you to notify it of the claim after you start marketing it.

On a website, link each claim to the disclaimer with a clear marker and place the disclaimer near the claim, not only in a distant footer. The disclaimer doesn't cure a disease claim: if the copy says the product treats a condition, adding the disclaimer underneath doesn't make it compliant.

Where do hidden health claims show up on a website?

Hidden health claims show up anywhere a reader can form an impression, not just in product descriptions. Regulators look at the whole site, so audit every surface that carries words or images.

  • Product names such as a supplement called a disease name plus Relief.
  • Images and icons, such as a before-and-after photo, an anatomical diagram or a pill shown next to a medical chart.
  • Testimonials and reviews you feature or repost. Under the FTC's endorsement guidance, you can't use a customer's words to make a claim you couldn't make yourself.
  • Blog posts about a disease that link straight to a product page.
  • Page titles, meta descriptions and hidden keywords, which regulators have cited as evidence of intended use.
  • Social posts and influencer content you pay for or share.

The same discipline applies to environmental claims, which our guide to greenwashing and your website covers, and to financial products in fintech website compliance.

How do you set up health claims website compliance review?

Set up health claims website compliance review as a standing process with a claims list, an evidence file and a named reviewer, so new pages don't bypass it. A one-off audit decays as soon as marketing ships the next campaign.

  1. Inventory every claim

    List each claim across product pages, ads, emails, social and the blog, word for word, with the page it appears on.

  2. Classify each one

    Mark it disease, structure/function, nutrient content or general wellness. Rewrite or cut disease claims.

  3. Match evidence to each claim

    Link each remaining claim to the studies that support it, for the same ingredient, dose and benefit.

  4. Add disclaimers and notifications

    Place the FDA disclaimer near each structure/function claim and confirm the notification has been filed.

  5. Lock it into the CMS

    Store approved claims as reusable content so writers pick from the approved list instead of inventing new wording.

  6. Review before publishing

    Route new claims, testimonials and influencer briefs to counsel or a trained reviewer before they go live.

Hypothetical example: rewriting a sleep supplement page

For example, suppose a brand's sleep supplement page says: Beat insomnia naturally. Our formula fixes sleep problems for good, and features a review saying it cured years of sleepless nights.

The rewrite: Supports restful sleep, with the dose and the ingredients named and linked to the studies behind them. The phrase for good is cut because no evidence supports a permanent effect. The cure testimonial is removed and replaced with one about the experience, such as how easy the routine is to stick to. The FDA disclaimer sits under the claim, and the product's meta description drops the word insomnia. The page is calmer, and every remaining sentence can be defended.

Do these claim rules affect how AI engines quote your website?

They do in practice. AI search engines quote clear, specific, self-contained sentences, so the claim on your page is the one most likely to be repeated word for word. A carefully worded, supported claim travels well. An overstated one gets amplified, along with your brand name.

Write each product page so its first lines state what the product is, what it's designed to support and for whom, in compliant language. Our guide to building an AI-search-ready website covers structure and schema. Accessible claims matter too, so include disclaimers as real text rather than images; see website accessibility for startups. The FTC publishes its health products guidance for advertisers.

Frequently asked questions

Can a supplement website say a product boosts immunity?
Phrases like supports normal immune function are typically treated as structure/function claims, while saying a product prevents colds, flu or infections is a disease claim. Even supports normal immune function needs scientific evidence for the ingredient and dose, plus the FDA disclaimer. Avoid linking immunity claims to any specific illness or outbreak.
Do wellness apps have to follow FDA claim rules?
Wellness apps that only encourage a healthy lifestyle, such as tracking sleep habits or guided breathing, generally fall under the FDA's general wellness policy and aren't regulated as devices. Apps that claim to diagnose, treat or manage a specific disease may be medical devices. The FTC's truth-in-advertising rules apply to both.
Are customer reviews on my site my responsibility?
Reviews you select, feature or promote are treated as your advertising. If a featured review says your product cured a disease, it can be read as your claim. Don't cherry-pick reviews that make claims you couldn't make yourself, and don't suppress negative reviews in a way that misleads.
Is natural or clinically studied a safe claim?
Neither is automatically safe. Natural can mislead if the product contains synthetic ingredients, and it doesn't imply safety. Clinically studied implies the finished product or its ingredients were tested in a way that supports your benefit, at the dose you use. If the studies don't match, the phrase is misleading.
Does the FDA disclaimer protect me from FTC action?
No. The FDA disclaimer addresses FDA labeling rules for structure/function claims. The FTC asks a different question: is the claim truthful and backed by competent and reliable scientific evidence. A claim can carry the disclaimer and still be deceptive if the evidence doesn't support it.

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