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Additives

Magnesium citrate (E345): What It Is and Is It Safe?

Safe Acidity Regulator / Mineral Supplement

Magnesium citrate is the magnesium salt of citric acid, used as an acidity regulator and as a source of dietary magnesium. It is well tolerated at food and supplement levels; only large medicinal doses produce an osmotic laxative effect. It is not authorised as additive E345 in the UK or EU, but magnesium citrate is permitted as a magnesium source in food supplements and fortified foods.

Category
Acidity Regulator / Mineral Supplement
Typically used in
Food supplements, fortified drinks and mineral preparations; buffering and acidity regulation.
Regulatory status
Not authorised as additive E345 in the UK/EU; permitted as a magnesium source in supplements and fortified foods.

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Sources

Where this comes from

  1. UK Food Standards Agency (2024) — Approved additives and E numbers https://www.gov.uk/government/publications/approved-additives-and-e-numbers/approved-additives-and-e-numbers
Products

Products containing Magnesium citrate

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