Choosing A Prostate Supplement: Seven Checks

Brand comparisons age badly and they are almost always written by somebody selling one of the brands. A checklist survives because the questions do not change when the products do, and because you can answer them yourself standing in an aisle.

Every check below is answerable from information a company has already published. None of them requires a laboratory, a subscription or a degree, and none of them asks you to judge whether an ingredient works — that question belongs to the companion guide and to the trials it cites.

What the seven measure is whether a label tells you enough to hold it to account. That is a lower bar than efficacy and a great deal of this category fails it.

Four passes, one partial, two outright failures. The failures are the reason the passes are worth reading.

Check three fails on two ingredients. The nettle on this panel is leaf at 50 mg, and the prostate literature for this plant is a literature about the root, with the lignans behind the proposed mechanism isolated from roots. The pumpkin seed is an extract at 100 mg, and in the one-year GRANU trial it was the whole seed at 10 g a day that beat placebo while the 1,000 mg extract arm did not.

Neither of those is a matter of opinion and neither can be argued away by a retailer. They are printed on the label, which is precisely why they can be checked: a proprietary blend would have hidden both.

Check five fails on the badge wall. A vegetarian badge ships with a pack whose capsule shell is gelatin. The label is the document that governs, so the product is not suitable for a vegetarian or vegan diet, and the quality page reads every badge on the pack one at a time rather than reproducing them as a trust strip.

Check four lands in between. Two of the six botanicals are dosed at or above the amounts their trials used, and three are well under. That is a mixed result rather than a failure, and calling it a pass would be generous in a way this page is trying not to be.

Check one is the one that matters most, because it is the gateway to the rest. This label prints an amount for every one of its 9 actives, which is why this page could score checks two, three and four at all. A great many competitors cannot be scored past the first question.

Check two follows from it. The parts are named, including “leaf” against the nettle, which is the disclosure that produced the failure two rows down. A company printing the inconvenient word is telling you something useful about how it handles the rest.

Check four is half-earned and the half worth naming is pygeum. At 200 mg it is double the 100 mg a day the dosing trial found effective, in the one ingredient on the panel with a genuinely encouraging pooled result. Saw palmetto at 300 mg is within touching distance of the 320 mg the trials used, although the 2023 Cochrane review found that amount does little or nothing.

Check six is the practical one. A 60-day window with a telephone number, a written procedure and a return address is worth more in this category than any badge, because it is the only thing on the list a buyer can enforce.

Take the list to the next label you look at. In practice most products fail at check one, because a proprietary blend is still the industry default, and a failure there makes checks three and four unanswerable rather than merely unfavourable.

The second commonest failure is check two. A panel reading “nettle extract” or “pumpkin extract” with no part and no standardisation is asking you to assume the research applies. The third is check six: a guarantee with no telephone number behind it and no return address published anywhere.

A useful way to keep score is to write the seven down and answer them before reading any marketing copy at all. The panel, the other-ingredients line, the badge wall and the returns page answer all seven between them, and none of those four is written by the copywriter.

If a product passes all seven, you have established that the company is telling you what is in the bottle and will take it back. That is worth having, and it is still not the same as evidence that it works.

• Whether the formula works. A label can pass all seven checks and still be a capsule with no trial behind the finished product, which describes almost everything in this category.
• Whether the amount in the capsule is the amount on the panel. That is a laboratory question, and a printed figure is a declaration made at manufacture.
• Whether an ingredient suits you personally. Interactions and existing conditions are a conversation with whoever prescribes for you.
• Whether the price is fair. Cost per day is a separate calculation and a cheap capsule of the wrong plant part is not a bargain.
• Whether your symptoms need something else entirely. That is the one question worth answering before any of the other six.

The checklist is a disclosure test rather than an efficacy test, and keeping the two apart is the whole discipline. MedlinePlus covers what an enlarged prostate is, the American Urological Association guideline covers what an initial assessment involves, and the companion guide covers what the evidence supports ingredient by ingredient.