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In force since 2026-08-13, as the publisher states.
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Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.
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4 provisions
Title and introductory text
2026 No. 680
FOOD, ENGLAND
The Food Supplements Purity Criteria (Magnesium L-threonate monohydrate) (England) Regulations 2026
Made
22nd June 2026
Coming into force
13th August 2026
The Secretary of State makes these Regulations in exercise of the powers conferred by regulation 3 and in accordance with regulation 5(1) of the Nutrition (Amendment etc.) (EU Exit) Regulations 2019 (“the 2019 Regulations”).
There has been open and transparent consultation in accordance with Article 9 of Regulation (EC) No 178/2002 of the European Parliament and of the Council of 28 January 2002 laying down the general principles and requirements of food law, establishing the European Food Safety Authority and laying down procedures in matters of food safety.
In accordance with regulation 6(3) of the 2019 Regulations, a draft of this instrument has been laid before Parliament and approved by a resolution of each House of Parliament.
Propose a change1 Citation, commencement, extent and application
(1) These Regulations may be cited as the Food Supplements Purity Criteria (Magnesium L-threonate monohydrate) (England) Regulations 2026 and come into force on 13th August 2026.
(2) These Regulations extend to England and Wales.
(3) These Regulations apply to England only.
Propose a change2 Purity criteria for magnesium L-threonate monohydrate
The purity criteria for magnesium L-threonate monohydrate are set out in the Schedule to these Regulations.
Propose a changeSchedule PURITY CRITERIA FOR MAGNESIUM L-THREONATE MONOHYDRATE
Regulation 2
Synonym | Magnesium L-threonate
Definition
Chemical name | Magnesium (2R,3S)-2,3,4-trihydroxybutanoate monohydrate
CAS number | 500304-76-7
Chemical formula | C8H16MgO 11
Molecular weight | 312.51 Da
Colour (solid) | White
Assay | Magnesium: 7.2% to 8.3% L-threonate: 82% to 91%
Description | A water-soluble white powder which is manufactured via a chemical synthetic process.
Identification
Solubility | Soluble in water at 1% concentration at 25℃ and that is clear in solution at 1% concentration.
pH USP (1% in H₂O) | 5.8 to 7.0
Purity
Loss on drying | Not more than 5.0% (105℃/4 hours)
Oxalic acid/oxalate | Not more than 0.5% (as oxalic acid)
Arsenic | Not more than 1 ppm
Lead | Not more than 0.5 ppm
Cadmium | Not more than 0.2 ppm
Mercury | Not more than 0.1 ppm
Propose a change