Dietary Supplement Label Requirements: The FDA's Five Required Elements

Dietary supplement label requirements in the United States come mainly from the Federal Food, Drug, and Cosmetic Act, as amended by DSHEA, and from FDA's food labeling regulations in 21 CFR Part 101. For a retail buyer, this matters for a simple reason: a mislabeled product is a misbranded product, and misbranded product can be pulled from shelves, refused at import, or recalled.

FDA's own Dietary Supplement Labeling Guide, which works as the agency's FDA dietary supplement labeling requirements guide in question-and-answer form, organizes the rules around five required elements. This article explains each one, where it goes on the package, and the additional statements that often apply.

The Two Label Panels That Matter

Before the five elements make sense, you need two terms. The principal display panel (PDP) is the part of the label most likely to be seen at retail, usually the front of the bottle or pouch. The information panel is the label panel immediately to the right of the PDP as the consumer faces it. If that space is unusable, such as a folded flap, the next panel to the right becomes the information panel.

Some elements must appear on the PDP, and others belong on the PDP or information panel. Getting placement wrong is a real violation even if all the right words are somewhere on the bottle.

The Five Required Elements of Dietary Supplement Labeling

1. Statement of identity

The statement of identity is the product's name, and for supplements it must identify the product as a dietary supplement. The word 'dietary' can be replaced with the name of the dietary ingredient, so 'Vitamin C Supplement' or 'Elderberry Supplement' work. It should be one of the most prominent pieces of text on the PDP and printed parallel to the base of the package.

2. Net quantity of contents

The net quantity statement tells the buyer how much product is in the package. For gummies, capsules, softgels, and tablets, it is usually a count, such as '60 Gummies' or '90 Softgels'. Powders use net weight and liquids use fluid volume. It goes in the bottom 30 percent of the PDP, parallel to the base, and must meet minimum type sizes that scale with the size of the panel. Weight and volume declarations should appear in both metric and U.S. customary units.

3. Supplement Facts panel

The Supplement Facts panel is the nutrition labeling for a supplement. It lists the serving size, servings per container where required, each dietary ingredient with its amount per serving, and the percent Daily Value where one exists. The format is defined in 21 CFR 101.36 and is detailed enough to deserve its own article; see our Supplement Facts panel guide for formatting rules and common errors.

4. Ingredient list

Anything in the product that is not declared as a dietary ingredient in the Supplement Facts panel goes in the ingredient statement, usually headed 'Other Ingredients'. For a gummy, that might include pectin or gelatin, sweeteners, citric acid, natural flavors, and colors. For a softgel, it would include the shell materials. Ingredients are listed by common or usual name in descending order of predominance by weight. If a dietary ingredient's source is already named inside the panel, it generally does not need to be repeated in this list.

5. Name and place of business

The label must state the name and place of business of the manufacturer, packer, or distributor. If the company named did not manufacture the product, the name must be qualified with a phrase like 'Manufactured for' or 'Distributed by'. The address must include the street address unless the firm is listed in a current telephone directory, plus the city, state, and ZIP code. This matters a lot for private-label programs, where the brand owner is typically listed as the distributor.

Additional Dietary Supplement Label Requirements

The five elements are the baseline. Several other statements are required when certain conditions apply, and buyers reviewing a line should check for them.

• Domestic contact for adverse events: supplements must list a domestic address or U.S. phone number through which a serious adverse event can be reported, a requirement added by the Dietary Supplement and Nonprescription Drug Consumer Protection Act of 2006.
• Major food allergens: under FALCPA and the FASTER Act, the nine major allergens (milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans, and sesame) must be declared, either in the ingredient list or in a 'Contains' statement.
• Structure/function disclaimer: any structure/function claim requires the FDA disclaimer, linked to the claim with a symbol. Our article on the FDA supplement disclaimer covers this in detail.
• Iron warning: supplements containing iron or iron salts must carry the specific accidental-overdose warning set out in 21 CFR 101.17(e).
• Botanical part of plant: for botanical ingredients, the part of the plant used (root, leaf, fruit, and so on) must be identified.

What FDA Does Not Require (But Buyers Often Do)

Some label elements are not federally mandated but are expected by retailers and distributors. Expiration or best-by dating is the most important. FDA does not require it on supplements, but if a date is used, the cGMP rule expects it to be supported by data. Most retail buyers require a date regardless, and many want lot and expiration coding on both the unit and the shipping case.

Barcodes, tamper-evident statements, storage instructions, and suggested use directions are also standard in practice. Suggested use is closely tied to serving size, so it should match what the Supplement Facts panel declares.

A label can have every right word on it and still be misbranded if those words are on the wrong panel.

A Quick Label Review Checklist for Buyers

1. Front panel names the product as a dietary supplement.
2. Net quantity sits in the bottom 30 percent of the front panel.
3. Supplement Facts panel follows the 101.36 format, with current units such as mcg for vitamin D and mcg DFE for folate.
4. Other ingredients are listed in descending order by weight.
5. Allergens are declared, including sesame where present.
6. Distributor or manufacturer is named with a qualifying phrase if needed, plus a domestic contact for adverse events.
7. Every structure/function claim is flagged and paired with the disclaimer.
8. Lot and expiration coding are present and legible.

For a broader walkthrough of how buyers evaluate labels during line review, see our supplement label basics for buyers.

RV Pharma publishes Supplement Facts panels for its stock gummies and softgels on product pages, and every lot ships with lot and expiration coding on bottle and case. If you are evaluating stock or private-label supplements and want to review label content before ordering, reach out at quote@rvpharma.com.