Stop overpaying for supplements.

The cost-per-dose ranking is arithmetic, not opinion: we take each listing’s last-seen price, divide it by the number of servings in the container, then normalize to the daily dose so two products on different bottle sizes line up on the same scale. That single figure — what one day of a supplement actually costs — is how every grid and is sorted. We do not invent prices, doses, or lab results; each row reflects the data we recorded from the retailer. Nutrient facts, food sources, and intake guidance live on the individual nutrient hubs, where they’re attributed to their sources rather than restated here.