Magnesium oxide
What is Magnesium oxide?
Magnesium oxide is a white, powdery mineral compound. It occurs naturally as the mineral periclase, but is typically produced commercially by heating magnesium carbonate or magnesium hydroxide. It is used as a source of magnesium.
Is Magnesium oxide vegan?
Magnesium oxide is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.
Is Magnesium oxide gluten-free?
It does not contain gluten.
Is Magnesium oxide a major allergen?
Magnesium oxide is not one of the 14 major allergens that UK law requires to be emphasised on food labels.
What is Magnesium oxide used for?
Magnesium oxide is primarily added to foods as a source of the mineral magnesium, which is an essential nutrient.
Is Magnesium oxide safe?
Magnesium oxide is authorised as a food additive in the UK and is listed in the Register of Food Additive Authorisations.
Why it's used
Magnesium oxide is primarily added to foods as a source of the mineral magnesium, which is an essential nutrient. It is often found in dietary supplements, fortified foods, and meal replacements. Its alkaline properties can also be used to regulate acidity in some food products.
Health notes
Magnesium oxide is authorised as a food additive in the UK and is listed in the Register of Food Additive Authorisations. It is evaluated by EFSA and JECFA, who have set acceptable daily intakes. Magnesium is an essential mineral for human health, contributing to normal muscle and nerve function, and the maintenance of normal bones. In food supplements, it contributes to normal energy-yielding metabolism. Excessive intake of magnesium from supplements can lead to diarrhoea and abdominal discomfort.
Regulatory status
Authorised in Great Britain (FSA register): England, Scotland, Wales. FSA register of authorised products
Permitted uses in the EU
| Food category | Maximum level |
|---|---|
| 5.1 Cocoa and chocolate products as covered by Directive 2000/36/EC | 70000 |
| 12.1.1 Salt | No numerical limit listed |
Allergen info
Magnesium oxide is not one of the 14 major allergens that UK law requires to be emphasised on food labels. It does not contain gluten.
Foods that contain Magnesium oxide
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