Supplement Facts vs. Other Ingredients

The Supplement Facts panel lists dietary ingredients and their amounts per serving. The Other Ingredients list identifies ingredients not declared in that panel, such as capsule materials, binders, fillers, preservatives, sweeteners, flavors, and colors. Read both sections: they answer different questions about the same product.

Quick read: Start with serving size, then read every dietary ingredient and amount in Supplement Facts. Next, read Other Ingredients for the capsule shell, gummy base, flavors, sweeteners, colors, fillers, and other formulation materials. “Other” does not mean optional, inactive, harmless, or unimportant. An ingredient source may appear inside Supplement Facts and not be repeated below it.

Know what belongs in Supplement Facts

FDA calls the nutrition label for a dietary supplement the Supplement Facts panel. It generally identifies:

serving size;
servings per container;
each dietary ingredient;
the quantitative amount per serving; and
percent Daily Value when FDA has established one and the rules require it.

Dietary ingredients can include vitamins, minerals, herbs and other botanicals, amino acids, dietary substances such as enzymes and live microbials, and concentrates, metabolites, constituents, extracts, or combinations of these categories.

Amounts normally apply to the full labeled serving. If serving size is two capsules and the panel lists 200 mg, that amount describes both capsules together unless a separate per-unit column says otherwise. The serving-size guide explains per-capsule, per-scoop, and full-container math.

Know what belongs in Other Ingredients

FDA uses “other ingredients” for ingredients not declared as dietary ingredients in Supplement Facts. Examples include:

fillers and binders;
excipients;
gelatin, starch, and stabilizers;
preservatives;
water and sugar;
sweeteners and flavorings;
food and color additives;
capsule shells, coatings, and gummy-base ingredients; and
a source of a dietary ingredient when that source is not already named in Supplement Facts.

These ingredients can make a tablet hold together, form a capsule shell, preserve a liquid, create a gummy texture, add color or flavor, or help manufacture the finished product.

“Other” is a label category, not a judgment about importance. An ingredient in this list can matter for an allergy, intolerance, dietary practice, religious preference, swallowing preference, or another practical reason.

Do not confuse “other ingredients” with “other dietary ingredients”

FDA uses two similar phrases for different concepts:

Label term	Where it appears	What it means
Other Ingredients	Below or next to Supplement Facts	Ingredients not declared in the facts panel, such as fillers, binders, flavors, and capsule materials
Other dietary ingredients	Inside Supplement Facts	Dietary ingredients without established Daily Values, such as some botanicals or other substances

An “other dietary ingredient” remains a dietary ingredient and belongs inside Supplement Facts. FDA says it should have a quantitative amount per serving and a symbol tied to “Daily Value Not Established.”

The phrase “Daily Value Not Established” does not move an ingredient into the Other Ingredients list. It means FDA has no Daily Value for calculating a percentage. The percent Daily Value guide explains that boundary.

Read ingredient sources in parentheses

A facts-panel line can name both a dietary ingredient and its source. FDA gives this pattern:

Calcium (as calcium carbonate)

Here, calcium is the dietary ingredient and calcium carbonate is the ingredient used to provide it. The declared amount is the amount of calcium, not the entire weight of calcium carbonate.

When a source ingredient appears inside Supplement Facts this way, FDA does not require it to be repeated in the ingredient list. Other examples can include a vitamin form, mineral salt, botanical source, or ingredient from which a constituent is derived.

Read the full parenthetical wording. Two products can list the same dietary ingredient amount but use different source forms. The form can matter when checking research, allergen context, dietary preferences, or directions. It does not by itself establish that one product works better.

Understand ingredient order

The Other Ingredients list generally runs in descending order of predominance by weight: the ingredient weighing the most appears first and the one weighing the least appears last.

This order does not reveal exact amounts. You cannot reliably divide the list, infer a dose, or conclude that the last ingredient is irrelevant. Different ingredients can have very different functions at different quantities.

Ingredient order inside Supplement Facts follows separate rules. Dietary ingredients with established Daily Values appear in a specified order, while dietary ingredients without Daily Values follow them. Proprietary blends have additional rules for totals and ingredient order.

The proprietary-blend guide explains why a blend’s order cannot replace individual amounts.

Check each format’s supporting ingredients

Format changes what you are likely to find outside the facts panel.

Capsules and softgels

Check the shell material and its source, along with plasticizers, colors, opacifiers, oils, or coatings. “Vegetable capsule” is not a complete ingredient list; read the named materials.

Tablets

Binders, coatings, lubricants, anti-caking agents, and colors may appear. These ingredients can support manufacturing or help the tablet hold its shape.

Gummies and chewables

Look for sugars or other sweeteners, gelling agents, acids, flavors, colors, oils, and coatings. The Nutrition or Supplement Facts panel may separately declare nutrients such as total or added sugars when applicable.

Powders

Flavored powders can include sweeteners, flavors, colors, thickeners, anti-caking agents, emulsifiers, or acids. Unflavored does not guarantee one ingredient.

Liquids

Water, glycerin, oils, flavors, sweeteners, preservatives, and stabilizers can appear. Read storage directions and the serving volume alongside the ingredient list.

The supplement-format guide covers the practical differences among these forms.

Read allergens across the whole label

Do not limit an allergen check to Supplement Facts. A dietary ingredient, source ingredient, capsule material, flavor, or other formulation ingredient can be relevant.

FDA requires major food allergens to be declared under applicable rules. The source can appear in an ingredient name, parentheses, or a Contains statement. Voluntary “may contain” or shared-facility wording addresses possible cross-contact and is different from an ingredient intentionally included in the product.

The allergen-label guide provides a full reading path. When an allergen decision is high stakes, use the current package and contact the manufacturer if the wording is unclear.

Understand when there may be no separate list

FDA says a separate ingredient statement is not needed when all source ingredients are already declared in Supplement Facts and the product has no additional ingredients such as fillers or excipients.

That means a missing Other Ingredients heading can have more than one explanation. It does not automatically prove a labeling defect or a one-ingredient product. Check whether the facts panel names all ingredient sources and whether the package uses another permitted layout.

When an ingredient list is present, FDA says it belongs immediately below the nutrition panel or, when space is insufficient, immediately next to its right.

Connect the ingredient sections to the rest of the package

A complete supplement label also includes more than these two ingredient sections. Check:

the product identity, such as “dietary supplement” or “herbal supplement”;
net quantity, which may be a count, weight, or volume;
serving size and servings per container;
directions and warnings;
name and place of business of the manufacturer, packer, or distributor; and
a domestic address or phone number for serious adverse-event reports.

Keep a photo of the full label, lot number, expiration or best-by date, and purchase record when you need to ask a product question or report a problem.

Know what neither section proves

The label tells you what the company declares. By itself, it does not prove:

that FDA approved the supplement before sale;
that every ingredient or finished product was tested by FDA;
that a claim is supported by relevant human evidence;
that the contents match the label in every package;
that an ingredient cannot interact with medicines;
that “natural,” “standardized,” “verified,” or “certified” guarantees quality; or
that the product is appropriate for a particular person.

NCCIH notes that products sold in stores or online can differ from products studied in research and that evidence and safety information vary widely. Use the ingredient identity, form, and amount to check whether research actually matches the product.

This guide explains U.S. dietary supplement labels. It does not determine whether a supplement is needed, diagnose a reaction, or decide whether any ingredient is safe for an individual. A clinician or pharmacist can help assess medicines, conditions, pregnancy, surgery, and other personal context.

Supplement Facts and Other Ingredients FAQ

What is the difference between Supplement Facts and Other Ingredients?

Supplement Facts lists dietary ingredients and amounts per serving. Other Ingredients lists ingredients not declared in that panel, such as capsule materials, fillers, binders, preservatives, sweeteners, flavors, and colors.

Does “other ingredients” mean inactive ingredients?

Not necessarily. “Other Ingredients” is the FDA label location for ingredients not declared as dietary ingredients in Supplement Facts. The heading does not mean those ingredients are harmless, optional, or irrelevant.

Why is an ingredient source not repeated below Supplement Facts?

FDA allows a source to appear in the facts panel, such as “Calcium (as calcium carbonate).” When declared there, the source does not have to be repeated in the ingredient statement.

Are ingredients listed from most to least?

The ingredients in the ingredient statement are generally listed in descending order of predominance by weight. That order does not reveal exact amounts and follows different rules from the ordering inside Supplement Facts.

Can a supplement have no Other Ingredients list?

Yes. FDA says a separate ingredient statement is unnecessary when all source ingredients are listed in Supplement Facts and there are no additional ingredients such as fillers or excipients. Read the whole label before drawing that conclusion.