Magnesium Stearate
This is what the ingredient is.
Magnesium stearate is a magnesium salt of stearic acid commonly used as a flow agent in supplements and foods.
Here is why it shows up on the label.
Prevents ingredients from sticking to manufacturing equipment. Used in tablets, capsules, candies, and spices.
Here is what food agencies say.
The FDA lists it as Generally Recognized as Safe. European food agencies allow it. Widely used in pharmaceuticals and foods globally.
Here is what research has found.
an FAO/WHO expert committee confirms safety. Components (magnesium, stearic acid) are normal dietary constituents. Very low absorption.
Here are a few things worth knowing.
Generally safe. Internet claims about harm are not supported by scientific evidence. Used in very small amounts.
Sources
- FDA GRAS List
- EFSA Scientific Opinion
- JECFA Monograph
How to read this page
We publish plain facts about this ingredient so a label is easier to read. This is not medical advice, and it is not a recommendation to buy, avoid, or use anything. For a personal health question, talk with a clinician who knows your history.