DigestFlow Testing And Quality

FDA-registered facilityThe agency knows the factory exists and may inspect it. Registration is a filing, not an endorsement, and it is not FDA approval, which no dietary supplement has.

GMPA standard for how a facility documents and controls its process. It governs the plant, not the bottle you received, and it does not assay the contents.

Foreign and domestic ingredientsA sourcing statement made by the supplier, and the fuller version of the label line: manufactured in the USA with globally sourced ingredients.

60-day satisfactionA commercial policy of the seller, counted from the date of purchase. It says nothing about the formula and should not be read as if it did.

Read that wall as a set and one thing stands out: two of the four are about a building, one is about where ingredients came from, and one is about a refund. None of them is about what is in the capsule.

That is not peculiar to this product. It is what a supplement seal wall almost always is, and the reason this page exists is that a wall of marks is easy to read as evidence when nothing in it is.

Eight questions. Three have documents behind them, four have nothing published, and one has a reference number.

The fourth and fifth rows are the ones a careful buyer should weigh. A published third-party assay, naming a laboratory and a date and showing measured amounts against the label claim, is the single strongest quality signal a supplement can offer. This product does not have one, and neither do most of its competitors.

What it does have is a panel that prints every amount, which makes the claim checkable in principle even though nobody has checked it. That is a step above a proprietary blend and several steps below an assay.

A page that audits four marks and finds none of them is about the formula owes the reader the other half of the picture, which is that this label does one thing properly.

It prints an amount for every active and standardises four of the five. No proprietary blend, no combined total, no ingredient hidden behind a group name. That means every claim on the panel is arithmetically checkable against the published literature, and the ingredients page does exactly that, row by row, including where the comparison is unflattering.

It is worth being precise about what that is and is not. A checkable claim is not a verified one: nobody has opened a bottle and measured it. But a label that publishes its numbers has chosen to be falsifiable, and a label that hides them behind a blend total has chosen not to be. That choice is the most informative quality signal on most supplement packs and it costs nothing to read.

• Look for a printed amount against every active. A blend total is a choice not to be checked.
• Look for a standardisation percentage on plant rows. Without one, a 130 mg extract could be almost anything.
• Look for the stimulant. If a product contains caffeine it has to say so, and a front page that leaves it to the panel is telling you something about its priorities.
• Treat FDA-registered as a statement about a building. It is never approval.
• Treat a seal wall as marketing until one of the marks names a laboratory and a date.
• Ask whether the claims are structure and function statements. Anything stronger is not permitted, and a site making a stronger claim is not a careful one.
• Check the storage line. A product that tells you how to keep it has thought about what happens after the sale.

Seven checks, all of which can be done from a photograph of a label. NCCIH’s overview of dietary and herbal supplements and its guidance on using them sensibly cover the regulatory background in more detail, and the choosing guide on this site turns the same seven into a scored checklist.