A supplement label is a short document, and most of it can be checked in a minute. Here are the four things we look at first.
Is every dose listed?
A proprietary blend lists several ingredients under one total weight. You cannot tell how much of each is in the product. Look for a label where every ingredient has its own dose.
Is the dose meaningful?
A dose far below the amount used in studies is not necessarily harmful, but it is often there so the ingredient can appear on the front of the pack. Compare the dose with what is described in published research, and with the reference intake for vitamins and minerals.
Which form is it?
The same mineral can be sold in several forms that the body absorbs differently. The form should be named on the label. If it is not, ask the company.
What does the claim say?
In the UK, claims about health benefits have to be authorised. A claim that sounds like it treats a condition is a warning sign. Look for plain wording that matches an authorised claim, and for honest statements where the evidence is limited.
We follow the same checklist for our own range. Every formulation page lists each ingredient, its dose, its form where it matters, and the reason it is there.