Magnesium Forms: A Label-Reading Guide for Consumers
Magnesium products are not interchangeable simply because the front label says “magnesium.” The chemical form, elemental amount, serving size and your reason for considering it all matter.
Magnesium products are not interchangeable simply because the front label says “magnesium.” The chemical form, elemental amount, serving size and your reason for considering it all matter.
Phrases such as “supports” or “helps maintain” can sound precise while still describing a broad claim. They are not the same as proof that a product treats, prevents or cures a disease.
A long ingredient list can look comprehensive without making the dose, form or purpose of each ingredient clear. The useful question is whether the formula is transparent enough to evaluate.
The ingredient name is only one part of a supplement label. The form, amount per serving and the evidence behind that exact form all affect what a reader can reasonably infer.
%DV is the most-read and least-understood number on a supplement label. Here is what it measures, why some ingredients show no %DV at all, and why a high percentage is not the same as a good dose.