How to Read a Supplement Facts Label Like You Mean It

The front of a supplement bottle is marketing. The back is where the facts live. Specifically, a little black-and-white box called the Supplement Facts panel, which dietary supplements sold in the U.S. are required to carry.

It looks a lot like the Nutrition Facts panel on your cereal, but it has its own rules and its own quirks. Once you know how to read it, you can size up almost any bottle in about thirty seconds. Let’s walk through it line by line, using our own Brazen Sea Moss Capsules as the worked example.

1. Serving size

This is the first line on the panel, and it’s the one everything else depends on. It tells you how much makes up one serving: one capsule, two gummies, one scoop, and so on.

On our Sea Moss Capsules, it reads: Serving Size: 2 Capsules.

Why this matters: every amount listed below is per serving, not per capsule. If a label says “1,000 mg” and the serving size is two capsules, each capsule holds about half of that. When you’re comparing two products, always check whether you’re comparing one capsule to one capsule, or one capsule to three.

2. Servings per container

Right under the serving size, this tells you how many servings are in the whole bottle. Ours says 30. Two capsules per serving, 30 servings, 60 capsules in the bottle, which is one month of daily servings. It’s also the number to use when comparing value.

3. Amount per serving

This is the heart of the panel: each dietary ingredient and how much of it you get in one serving. Here’s how ours reads:

Organic Irish Moss (Chondrus crispus) (whole plant): 500 mg
Organic Bladderwrack (Fucus vesiculosus) (whole plant): 500 mg
Organic Burdock (Arctium lappa) (root): 400 mg
BioPerine® (Black Pepper Extract) (Piper nigrum) (fruit): 5 mg

Notice the words in parentheses. For botanical ingredients, the label names the species in Latin, so there’s no confusion about which plant you’re getting, and it identifies the part of the plant used: whole plant, root, leaf, fruit, seed. That’s useful information, because different parts of the same plant can be quite different. If a botanical is listed with no plant part at all, that’s worth a raised eyebrow.

4. % Daily Value, and those double asterisks

The % Daily Value (%DV) column tells you how much a serving contributes toward a reference daily amount set for nutrients like vitamin C, calcium or iron. It’s a quick way to put a number in context.

But plenty of supplement ingredients, including most herbs and botanicals, don’t have an established Daily Value. For those, the %DV column shows a symbol (often **) that points to a footnote reading something like: “** Daily Value (DV) not established.”

That footnote isn’t a warning, and it doesn’t mean something is wrong. It simply means there’s no official reference amount for that ingredient, so a percentage can’t be calculated. On our Sea Moss Capsules, all four ingredients carry the double asterisk, which is exactly what you’d expect from an all-botanical formula.

5. Proprietary blends

Sometimes you’ll see a line like “Energy Blend: 900 mg” followed by a list of ingredients with no individual amounts. That’s a proprietary blend.

The rules require the blend to show its total weight and list its ingredients in descending order by weight, most to least. What it doesn’t have to show is how much of each ingredient is in there. So a blend could be mostly the first ingredient, with just a sprinkle of the rest.

Proprietary blends are legal and common. But if you want to know exactly how much of each ingredient you’re getting, look for labels that list every ingredient with its own amount. (Ours do, which is why you can see every milligram above.)

6. Other ingredients

Below the panel you’ll find “Other ingredients.” These are the non-dietary ingredients: the capsule itself, fillers, flow agents, colors, flavors and so on, listed in descending order by weight.

This is where you find out what the capsule is made of. The two you’ll see most often:

Gelatin: an animal-derived protein. Common and effective, but not vegan or vegetarian.
Plant-based capsules: such as pullulan, made by fermenting starch, or hypromellose (HPMC), made from plant cellulose.

Our Sea Moss Capsules list just one: pullulan capsules.

7. The asterisk and the FDA disclaimer

Look at the front of many supplement bottles and you’ll spot a phrase like “supports healthy energy*” with a little asterisk. Follow that asterisk and you’ll find this sentence somewhere on the label:

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Here’s what’s going on. Supplements are allowed to make structure/function claims, statements about how a nutrient or ingredient is intended to affect the normal structure or function of the body, like “supports bone health” or “helps maintain healthy digestion.” Whenever a label makes one of those claims, it has to carry that disclaimer.

What supplements can’t do is make disease claims: saying a product treats, cures, mitigates or prevents a disease. That’s territory reserved for drugs. So if you see a supplement promising to cure something, that’s your cue to put it back on the shelf.

8. The rest of the fine print

“Dietary Supplement” on the front, identifying what the product is.
Net quantity, such as the capsule count or weight.
Directions and any warnings. Read these every time.
Allergen information, where applicable.
The name and place of business of the manufacturer, packer or distributor.
Often, a lot number and a best-by date, usually stamped on the bottle or box.

Your thirty-second label check

What’s the serving size, and how many servings are in here?
Is every ingredient listed with its own amount?
For botanicals, is the plant part named?
What’s the capsule made of, and what else is in “other ingredients”?
Are the claims structure/function, with the disclaimer, and nothing promising to cure anything?

Where Brazen fits

We print every amount on our labels because we want you to be able to do exactly this. Grab a bottle of Sea Moss Capsules, flip it over and run the checklist. We’ll wait.

This article is for general information and isn’t medical advice. Talk to your healthcare professional before starting any supplement.