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The Food Supplements Purity Criteria (Magnesium L-threonate monohydrate) (England) Regulations 2026

Draft. This instrument was laid in draft and may differ from the one made. Look for the made version under its title.

Draft 2026, ISBN 9780348282573

Original text. legislation.gov.uk does not revise statutory instruments, so later amendments are not shown here. Changes made to it are listed under each provision when known.

Draft Regulations laid before Parliament under regulation 6(3) of the Nutrition (Amendment etc.) (EU Exit) Regulations 2019, for approval by resolution of each House of Parliament.

FOOD, ENGLAND

Made ***

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”)f1.

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 safetyf2.

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.

Annotations to the whole text

Footnotes

f1

S.I. 2019/651, amended by S.I. 2026/412. There are other amending instruments but none are relevant. These powers are exercised by the Secretary of State who is the “appropriate authority” for regulations applying in relation to England, as defined in regulation 5(4)(a).

f2

EUR 2002/178, to which there are other amending instruments but none are relevant.

Contents

  1. 1Citation, commencement, extent and application
  2. 2Purity criteria for magnesium L-threonate monohydrate
  3. Signature
  4. Schedule PURITY CRITERIA FOR MAGNESIUM L-THREONATE MONOHYDRATE
  5. Explanatory note

1Citation, 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.

2Purity criteria for magnesium L-threonate monohydrate

The purity criteria for magnesium L-threonate monohydrate are set out in the Schedule to these Regulations.

Signature

Signed by authority of the Secretary of State for Health and Social Care

L.S.

Name

Parliamentary Under-Secretary of State

Department of Health and Social Care

Date

PURITY CRITERIA FOR MAGNESIUM L-THREONATE MONOHYDRATE

Synonym Magnesium L-threonate
Definition
Chemical nameMagnesium (2R,3S)-2,3,4-trihydroxybutanoate monohydrate
CAS number500304-76-7 f1
Chemical formulaC 8H 16MgO 11
Molecular weight312.51 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
SolubilitySoluble in water at 1% concentration at 25℃ and that is clear in solution at 1% concentration.
pH USP f2 (1% in H₂O) 5.8 to 7.0
Purity
Loss on dryingNot more than 5.0% (105℃/4 hours)
Oxalic acid/oxalateNot more than 0.5% (as oxalic acid)
ArsenicNot more than 1 ppm
LeadNot more than 0.5 ppm
CadmiumNot more than 0.2 ppm
MercuryNot more than 0.1 ppm

Explanatory note

(This note is not part of the Regulations)

These Regulations set the purity criteria for the mineral substance magnesium L-threonate monohydrate, as a source of magnesium, as set out in the Schedule to these Regulations (regulation 2).

An impact assessment has not been produced for this instrument as no, or no significant, impact on the private, voluntary or public sector is foreseen.

An Explanatory Memorandum has been published alongside this instrument at www.legislation.gov.uk.