Category literacy

How to Read a Supplement Label That Prints No Milligrams

Reviewed by Alyssa Simpson, RDN

A panel can take three shapes. It can print an amount beside every ingredient, it can hide everything inside a proprietary blend with one total, or it can simply name the ingredients and stop. The third is the most common in herbal formulas and the least discussed, and it is the shape the BellyFlush label takes.

The three shapes a panel can take

The middle shape is the one consumer advice usually warns about, and it is at least informative: a blend total is a ceiling, so a 500 mg blend of eight ingredients cannot contain 400 mg of any one of them without leaving very little for the rest.

The third shape gives you less than that, and it is rarely discussed. A list of eleven names with no total tells you nothing about proportion, nothing about strength and nothing that could be compared against any published study. the NIH Office of Dietary Supplements is a good primer on reading supplement labels generally.

Why it matters most on a laxative

On a vitamin C tablet a missing amount is annoying. On a stimulant laxative it is the whole question, because dose is the only thing separating a mild overnight nudge from a purgative.

Consider what a manufacturer can lawfully do. Pharmacy senna is standardised to a stated sennoside content and people titrate up from one tablet. A generous herbal blend can carry several times that in a two-capsule serving. Both are legal, both look identical on an unspecified label, and the buyer finds out which they bought at about four in the morning.

There is a second consequence for anybody who reads research. Morishita 2021 studied a stated dose. Penninkilampi 2017 pooled studies of measurable licorice intake. A capsule that merely names those ingredients inherits none of it, and a page implying otherwise is being careless with a reader’s trust.

The extract problem

Two of the eleven names on this label carry the word extract. An extract is not the ground herb, it is a concentrate, and the concentration is expressed as a ratio.

• Four to one means four parts of raw plant reduced to one part of powder.
• Twenty to one is five times stronger again at the same milligram figure.
• No ratio at all means the word extract is doing no work beyond sounding technical.

So two products naming the same ingredient at the same stated milligram figure can differ several-fold in what they actually deliver, and an unspecified extract with no figure at all sits outside that comparison entirely.

This is not an accusation of bad faith against any particular manufacturer. Most herbal blends are labelled this way, it is lawful, and it is the norm. It is simply the difference between a panel a pharmacist could evaluate in thirty seconds and one nobody can evaluate at all.

Standardisation, the third missing figure

Standardisation means the extract has been adjusted so that a named marker compound is present at a stated level. It is what makes one batch behave like the next.

For a laxative

The marker is sennoside content, usually a percentage or a milligram figure of sennoside B. Pharmacy laxatives print it because with this class of ingredient the marker is the dose.

For licorice

The marker is glycyrrhizin, and the question is whether it has been removed. A deglycyrrhizinated extract largely sidesteps the blood pressure and potassium problem that Penninkilampi 2017 describes. A standard extract does not. One word would settle it.

For a mineral ingredient

Bentonite clay raises a different question: source and purity rather than potency. Al-Rmalli 2010 measured arsenic and other toxic elements in clay eaten traditionally, which is why the origin of a clay matters and why a heavy-metal screen would be the reassuring document to see.

What a fully specified label would print

Worth writing down, because most people in this aisle have never seen one and therefore have no benchmark.

That is seven extra lines of print and one document. None of it is a trade secret, because the ingredient list is already public. The reason it is rare is commercial: specification invites comparison, and an unspecified product cannot be compared with anything. the FDA explains the regulatory route that makes this possible.

Five questions worth asking a manufacturer

• How many milligrams of each botanical are in a serving? The answer, or its absence, is the whole article.
• What is the extraction ratio? Ask for both extracts by name.
• What is the sennoside content? A manufacturer that knows will answer in a sentence.
• Is the licorice deglycyrrhizinated? One word.
• Can I see a certificate of analysis for my lot? Quote the lot code from the base of the bottle.

Asking is worthwhile even when the answer is no. A manufacturer that answers four of five is a different proposition from one that answers none, and the responses accumulate into something genuinely useful for the next buyer.

BellyFlush scored in public

This desk sells BellyFlush, so applying the article to it is the only way the article is worth reading. Here is the result, without softening.

• Milligram figures: not published, for any of the eleven.
• Extraction ratios: not published, for either extract.
• Sennoside content: not published.
• Deglycyrrhizinated licorice: not stated.
• Duration limit: not on the label. This website states a position instead.
• Interactions: not on the label. Published in full on the side effects page.
• Certificate of analysis: a reference number is held, no laboratory report has been seen by this desk, and the regulatory position behind two of the ingredients is set out in the FDA's 2002 final rule.

Seven questions, seven blanks or partial answers. That is the honest score of the product on this website, and the reason it is published here rather than buried is that a reader who knows exactly which questions are unanswered is in a better position than one who has been reassured by a row of seals.

The full checklist guide takes this further, with nine checks and the same product scored against all of them.

What to do when the answer is not published

An unspecified panel is not a reason to abandon a purchase. It is a reason to change how you approach the first bottle, and there are four practical adjustments worth making.

• Treat bottle one as calibration. You are finding out what this particular product does to you, which is information you cannot get from the label. Start on a night before a morning you control.
• Do not stack anything. No second laxative, no magnesium preparation, no extra senna tablet because the blend feels mild. With an unknown dose you would be adding to a number you cannot see.
• Buy the smallest pack first. The per-bottle discount on a large pack is a poor trade against an unknown response, and thirty nights answers the question completely.
• Keep the packaging. The guarantee needs empty bottles back, and an unspecified product is precisely the kind you might want to return.

There is a fifth adjustment that costs nothing and helps everybody: ask. A manufacturer that receives the same five questions repeatedly starts answering them, and a label that gains a milligram column gains it because enough people asked for one. This desk has asked and will publish anything it is given.

In the meantime, the useful mental model is simple. A botanical name with no amount tells you what is in the bottle. A botanical name with an amount and a standardisation marker tells you what the bottle will do. Only the second is a specification, and only the second can be compared with a study.

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