Evidence

Most supplement marketing does not lie about the research. It cites real studies — and then draws a conclusion the study never supported. These pieces are about spotting the gap between the citation and the claim.

Here is the move, and once you have seen it you will see it everywhere.

A real study finds that people with condition X tend to have lower levels of compound Y. That is an association: two things observed together. It does not establish that low Y causes X, that raising Y fixes X, or that swallowing Y raises it in the tissue that matters. A page then cites that study — accurately — beside a bottle containing Y. Nothing false has been printed. The false thing happens in the reader's head, which is precisely where it cannot be prosecuted.

The second move is subtler. A study is run on 500 mg of an isolated compound. The product contains an undisclosed fraction of that compound inside a nine-ingredient blend. The citation is real; the product it is cited next to was never tested. Evidence for an ingredient has been silently upgraded into evidence for a formula.

Neither move requires anyone to lie. Both collapse the moment you ask one question: was this study run on the thing I am about to buy? Usually the answer is no — and knowing that is not cynicism. It is just reading carefully.

In this section