Magnezyum oksit

Detailed information

What it is & how it is made

The EU specification defines magnesium oxide as a white powder available in light and heavy densities, at least 98 per cent pure on the ignited basis and practically insoluble in water.

Where it is used

It is used as an anti-caking agent and acidity regulator. In cocoa powder, salt and instant drink powders it absorbs moisture and keeps the product free-flowing.

Health note

JECFA has placed this substance in the “ADI not specified” group, meaning no numerical daily intake limit was considered necessary; in the EU it appears in the Group I list of Regulation 1333/2008 and is used at “quantum satis”, the smallest amount technologically required. No health risk has been reported at normal food use levels.

Halal assessment

This substance is an inorganic mineral compound produced without animal raw materials, so no halal concern has been reported for the additive itself. The product as a whole should still be assessed: carriers or other ingredients in the formulation may be of animal origin.