E528
Magnesium hydroxide
What the research shows
Not enough
published research on this page yet
A white mineral also called brucite.
It is used in antacids like milk of magnesia.1
- Vegan
- Vegetarian
- EU permitted
What expert reviews concluded
Expert panels that weigh all the research. Shown for context: the signal at the top does not count them.
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UN and WHO food additive experts (JECFA), 1965
No daily limit needed (“ADI not specified”, JECFA’s term for very low toxicity).
Regulatory status
Checked Sep 2026-
United States Permitted FDA 21 CFR 184.1428
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European Union Permitted EUR-Lex Reg. (EC) 1333/2008
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United Kingdom Permitted FSA retained EU law
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Canada Permitted Health Canada · Adjusting Agents
Status reflects the named register on the date checked. It is not a safety rating.
How we checkProducts
The 6 most-scanned of 102 products on Open Food Facts that list magnesium hydroxide.
- ready-to-drink complete meal smooth vanilla flavour yfood · 500 ml 8 additives
- BREAKFAST ESSENTIALS Nutritional Powder Drink Mix Rich Milk Chocolate Carnation · 502 g 2 additives
- RICH CHOCOLATE MIX Ovaltine · 1.12 lb 3 additives
- Emergen-C Immune+ Super Orange Emergen-C 3 additives
- Delibake, Cookies, Oatmeal Delight Delibake Svenska Ab 4 additives
- Classic french vanilla Carnation 1 additive
References
- 1Magnesium hydroxide. Wikipedia. Accessed September 26, 2026. CC BY-SA 4.0.