How we rank products
Every ranking follows the same four steps. We explain the result in each article so you can judge it for yourself.
Ingredients first
We read the full label: the form of the nutrient, the dose per serving and what else is inside (fillers, sweeteners, allergens).
Doses checked
We compare the dose with NHS guidance and EFSA reference intakes, and flag products that go above safe upper levels.
Buyer feedback
We compile what verified buyers report on major retailers, including side effects and taste.
Value and availability
We look at the price per serving and whether the product is easy to buy.
How we score
Each product gets a score out of 10, built from four criteria: gentleness, dose against official references, value and buyer feedback. The breakdown is shown in every product box.
What we do not claim
Unless an article says so explicitly, we do not run laboratory tests on products and we never publish test results we have not carried out ourselves.
Independence
No brand pays to be included or to rank higher. Some links earn us a commission; see our affiliate disclosure.
Questions or corrections?
We read every message.