en-gb	Welsh Statutory Instruments
cy-gb	Offerynnau Statudol Cymru

en-gb	2026 No. 56
cy-gb	2026 Rhif 56

en-gb	FOOD, WALES
cy-gb	BWYD, CYMRU

en-gb	The Food Supplements (Magnesium L-threonate monohydrate) (Wales) Regulations 2026
cy-gb	Rheoliadau Atchwanegiadau Bwyd (Magnesiwm L-threonad monohydrad) (Cymru) 2026

en-gb	Made
cy-gb	Gwnaed

en-gb	26 February 2026
cy-gb	26 Chwefror 2026

en-gb	Coming into force
cy-gb	Yn dod i rym

en-gb	The Welsh Ministers, in exercise of the powers conferred by regulations 2(2), 3 and 5(1) of the Nutrition (Amendment etc.) (EU Exit) Regulations 2019(1), make the following Regulations.
cy-gb	Mae Gweinidogion Cymru, drwy arfer y pwerau a roddir gan reoliadau 2(2), 3 a 5(1) o Reoliadau Maethiad (Diwygio etc.) (Ymadael â’r UE) 2019(1), yn gwneud y Rheoliadau a ganlyn.

en-gb	There has been consultation as required by 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(2).
cy-gb	Ymgynghorwyd fel sy’n ofynnol gan Erthygl 9 o Reoliad (EC) Rhif 178/2002 Senedd Ewrop a’r Cyngor dyddiedig 28 Ionawr 2002 sy’n gosod egwyddorion a gofynion cyffredinol cyfraith bwyd, yn sefydlu Awdurdod Diogelwch Bwyd Ewrop ac yn gosod gweithdrefnau o ran materion diogelwch bwyd(2).

en-gb	These Regulations have been laid before Senedd Cymru in accordance with the Senedd approval procedure under regulation 8(3) of the Nutrition (Amendment etc.) (EU Exit) Regulations 2019(3).
cy-gb	Mae’r Rheoliadau hyn wedi eu gosod gerbron Senedd Cymru yn unol â gweithdrefn gymeradwyo’r Senedd o dan reoliad 8(3) o Reoliadau Maethiad (Diwygio etc.) (Ymadael â’r UE) 2019(3).

en-gb	Title, coming into force and extent
cy-gb	Enwi, dod i rym a rhychwant

en-gb	1.—(1) The title of these Regulations is the Food Supplements (Magnesium L-threonate monohydrate) (Wales) Regulations 2026.
cy-gb	1.—(1) Enw’r Rheoliadau hyn yw Rheoliadau Atchwanegiadau Bwyd (Magnesiwm L-threonad monohydrad) (Cymru) 2026.

en-gb	(2) These Regulations come into force on 5 March 2026.
cy-gb	(2) Daw’r Rheoliadau hyn i rym ar 5 Mawrth 2026.

en-gb	(3) These Regulations extend to England and Wales.
cy-gb	(3) Mae’r Rheoliadau hyn yn rhychwantu Cymru a Lloegr.

en-gb	Amendment of the Nutrition (Amendment etc.) (EU Exit) Regulations 2019
cy-gb	Diwygio Rheoliadau Maethiad (Diwygio etc.) (Ymadael â’r UE) 2019

en-gb	2.—(1) Schedule 2 to the Nutrition (Amendment etc.) (EU Exit) Regulations 2019 (vitamin and mineral substances which may be used in the manufacture of food supplements)(4) is amended as follows.
cy-gb	2.—(1) Mae Atodlen 2 i Reoliadau Maethiad (Diwygio etc.) (Ymadael â’r UE) 2019 (sylweddau fitaminau a mwynau y caniateir eu defnyddio wrth weithgynhyrchu atchwanegiadau bwyd)(4) wedi ei diwygio fel a ganlyn.

en-gb	(2) In Part B (minerals) of the table, after the entry “magnesium citrate malate” insert “magnesium L-threonate monohydrate (in relation to Wales)”.
cy-gb	(2) Yn Rhan B (mwynau) o’r tabl, ar ôl y cofnod “magnesium citrate malate” mewnosoder “magnesium L-threonate monohydrate (in relation to Wales)”.

en-gb	Purity criteria for magnesium L-threonate monohydrate
cy-gb	Y meini prawf purdeb ar gyfer magnesiwm L-threonad monohydrad

en-gb	The purity criteria for magnesium L-threonate monohydrate are set out in the Schedule.
cy-gb	Mae’r meini prawf purdeb ar gyfer magnesiwm L-threonad monohydrad wedi eu nodi yn yr Atodlen.

en-gb	Sarah Murphy
cy-gb	Sarah Murphy

en-gb	Minister for Mental Health and Wellbeing, under the authority of the Cabinet Secretary for Health and Social Care, one of the Welsh Ministers
cy-gb	Y Gweinidog Iechyd Meddwl a Llesiant, o dan awdurdod Ysgrifennydd y Cabinet dros Iechyd a Gofal Cymdeithasol, un o Weinidogion Cymru

en-gb	Regulation 3
cy-gb	Rheoliad 3

en-gb	Schedule Purity criteria for magnesium L-threonate monohydrate
cy-gb	YR ATODLEN Y meini prawf purdeb ar gyfer magnesiwm L-threonad monohydrad

en-gb	Magnesium L-threonate monohydrate
cy-gb	Magnesiwm L-threonad monohydrad

en-gb	The number assigned to this substance by the Chemical Abstracts Service (www.cas.org/cas-data/cas-registry).
cy-gb	Y rhif a neilltuwyd i’r sylwedd hwn gan y Gwasanaeth Crynodebu Cemegol (www.cas.org/cas-data/cas-registry).

en-gb	The dalton, or unified atomic mass unit, is a unit of mass defined as one twelfth of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest.
cy-gb	Uned o fàs yw’r dalton, neu’r uned màs atomig unedig, a ddiffinnir fel un rhan o ddeuddeg o fàs atom carbon-12 niwtral di-rwym sydd yn ei gyflwr niwclear ac electronig isaf ac sy’n ddisymud.

en-gb	United States Pharmacopeia.
cy-gb	United States Pharmacopeia.

en-gb	Synonym
cy-gb	Cyfystyr

en-gb	Magnesium L-threonate
cy-gb	Magnesiwm L-threonad

en-gb	Definition
cy-gb	Diffiniad

en-gb	Chemical name
cy-gb	Enw cemegol

en-gb	Magnesium (2R,3S)-2,3,4-trihydroxybutanoate monohydrate
cy-gb	Magnesiwm (2R,3S)-2,3,4-trihydrocsibwtanoad monohydrad

en-gb	Chemical formula
cy-gb	Fformiwla gemegol

en-gb	C8H16MgO11
cy-gb	C8H16MgO11

en-gb	CAS number
cy-gb	Rhif CAS

en-gb	500304-76-7(1)
cy-gb	500304-76-7(1)

en-gb	Molecular weight
cy-gb	Pwysau moleciwlaidd

en-gb	312.51 Da(2)
cy-gb	312.51 Da(2)

en-gb	Colour (solid)
cy-gb	Lliw (solid)

en-gb	White
cy-gb	Gwyn

en-gb	Assay
cy-gb	Prawf

en-gb	Magnesium:
cy-gb	Magnesiwm:

en-gb	7.2 to 8.3%
cy-gb	7.2 i 8.3%

en-gb	L-threonate:
cy-gb	L-threonad:

en-gb	Description
cy-gb	Disgrifiad

en-gb	A water-soluble white powder which is manufactured via a chemical synthetic process.
cy-gb	Powdr gwyn sy’n hydawdd mewn dŵr, a weithgynhyrchir drwy broses synthetig gemegol.

en-gb	Identification
cy-gb	Dull adnabod

en-gb	Solubility
cy-gb	Hydoddedd

en-gb	Soluble in water at 1% concentration at 25℃ and that is clear in solution at 1% concentration.
cy-gb	Hydawdd mewn dŵr ar grynodiad o 1% ar 25°C ac yn glir mewn hydoddiant ar grynodiad o 1%.

en-gb	pH (USP(3) (1% in H2O))
cy-gb	pH (USP(3) (1% mewn H2O))

en-gb	5.8 to 7.0
cy-gb	5.8 i 7.0

en-gb	Purity
cy-gb	Purdeb

en-gb	Loss on drying
cy-gb	Colled wrth sychu

en-gb	Not more than 5.0% (105℃/4 hours)
cy-gb	Dim mwy na 5.0% (105℃/4 awr)

en-gb	Oxalic acid/oxalate
cy-gb	Asid ocsalig/ocsalad

en-gb	Not more than 0.5% (as oxalic acid)
cy-gb	Dim mwy na 0.5% (ar ffurf asid ocsalig)

en-gb	Arsenic
cy-gb	Arsenig

en-gb	Not more than 1 mg/kg
cy-gb	Dim mwy nag 1 mg/kg

en-gb	Lead
cy-gb	Plwm

en-gb	Not more than 0.5 mg/kg
cy-gb	Dim mwy na 0.5 mg/kg

en-gb	Cadmium
cy-gb	Cadmiwm

en-gb	Mercury
cy-gb	Mercwri

en-gb	EXPLANATORY NOTE
cy-gb	NODYN ESBONIADOL

en-gb	(This note is not part of the Regulations)
cy-gb	(Nid yw’r nodyn hwn yn rhan o’r Rheoliadau)

en-gb	These Regulations are made using powers set out in regulations 2(2), 3 and 5(1) of the Nutrition (Amendment etc.) (EU Exit) Regulations 2019 (S.I. 2019/651) (“the 2019 Regulations”).
cy-gb	Mae’r Rheoliadau hyn wedi eu gwneud drwy ddefnyddio pwerau a nodir yn rheoliadau 2(2), 3 a 5(1) o Reoliadau Maethiad (Diwygio etc.) (Ymadael â’r UE) 2019 (O.S. 2019/651) (“Rheoliadau 2019”).

en-gb	Regulation 5 of the Food Supplements (Wales) Regulations 2003 (S.I. 2003/1719 (W. 186)) prohibits the sale of food supplements manufactured using vitamins or minerals unless that vitamin or mineral is—
cy-gb	Mae rheoliad 5 o Reoliadau Ychwanegion Bwyd (Cymru) 2003 (O.S. 2003/1719 (Cy. 186)) yn gwahardd gwerthu atchwanegiadau bwyd a weithgynhyrchwyd gan ddefnyddio fitaminau neu fwynau oni bai bod y fitamin neu’r mwyn hwnnw—

en-gb	listed in Schedule 1 to the 2019 Regulations;
cy-gb	wedi ei restru yn Atodlen 1 i Reoliadau 2019;

en-gb	in a form which is listed in Schedule 2 to the 2019 Regulations and meets the relevant purity criteria.
cy-gb	ar ffurf sydd wedi ei rhestru yn Atodlen 2 i Reoliadau 2019 ac sy’n bodloni’r meini prawf purdeb perthnasol.

en-gb	The mineral, magnesium, is already listed in Schedule 1 to the 2019 Regulations.
cy-gb	Mae’r mwyn, magnesiwm, eisoes wedi ei restru yn Atodlen 1 i Reoliadau 2019.

en-gb	These Regulations—
cy-gb	Mae’r Rheoliadau hyn yn—

en-gb	add the mineral form, magnesium L-threonate monohydrate (“the Substance”) to the list in Schedule 2 to the 2019 Regulations;
cy-gb	ychwanegu’r ffurf fwynol, magnesiwm L-threonad monohydrad (“y Sylwedd”) at y rhestr yn Atodlen 2 i Reoliadau 2019;

en-gb	set purity criteria for the Substance.
cy-gb	gosod meini prawf purdeb ar gyfer y Sylwedd.

en-gb	The Substance is also a novel food within the meaning of Regulation (EU) 2015/2283 of the European Parliament and of the Council of 25 November 2015 on novel foods, amending Regulation (EU) No 1169/2011 of the European Parliament and of the Council and repealing Regulation (EC) No 258/97 of the European Parliament and of the Council and Commission Regulation (EC) No 1852/2001 (EUR 2015/2283) (“the Novel Food Regulation”).
cy-gb	Mae’r Sylwedd hefyd yn fwyd newydd o fewn ystyr “novel food” yn Rheoliad (EU) 2015/2283 Senedd Ewrop a’r Cyngor dyddiedig 25 Tachwedd 2015 ar fwydydd newydd, sy’n diwygio Rheoliad (EU) Rhif 1169/2011 Senedd Ewrop a’r Cyngor ac yn diddymu Rheoliad (EC) Rhif 258/97 Senedd Ewrop a’r Cyngor a Rheoliad y Comisiwn (EC) Rhif 1852/2001 (EUR 2015/2283) (“y Rheoliad Bwyd Newydd”).

en-gb	The Welsh Ministers have determined the authorisation status of the Substance in relation to Wales in accordance with Article 12 of the Novel Food Regulation.
cy-gb	Mae Gweinidogion Cymru wedi penderfynu statws awdurdodi’r Sylwedd o ran Cymru yn unol ag Erthygl 12 o’r Rheoliad Bwyd Newydd.

en-gb	Information about the authorisation is available on the list of novel foods maintained by the Food Standards Agency (Foss House, Kings Pool, 1-2 Peasholme Green, York, YO1 7PR) in accordance with Article 3B of the Novel Food Regulation.
cy-gb	Mae gwybodaeth am yr awdurdodiad ar gael ar y rhestr o fwydydd newydd a gynhelir gan yr Asiantaeth Safonau Bwyd (Foss House, Kings Pool, 1-2 Peasholme Green, York, YO1 7PR) yn unol ag Erthygl 3B o’r Rheoliad Bwyd Newydd.

en-gb	The Welsh Ministers’ Code of Practice on the carrying out of Regulatory Impact Assessments was considered in relation to these Regulations.
cy-gb	Ystyriwyd Cod Ymarfer Gweinidogion Cymru ar gynnal Asesiadau Effaith Rheoleiddiol mewn perthynas â’r Rheoliadau hyn.

en-gb	As a result, a regulatory impact assessment has been prepared as to the likely costs and benefits of complying with these Regulations.
cy-gb	O ganlyniad, lluniwyd asesiad effaith rheoleiddiol o’r costau a’r manteision sy’n debygol o ddeillio o gydymffurfio â’r Rheoliadau hyn.

en-gb	A copy can be obtained from the Public Health Directorate, Welsh Government, Cathays Park, Cardiff, CF10 3NQ and is published on www.gov.wales.
cy-gb	Gellir cael copi oddi wrth: Cyfarwyddiaeth Iechyd y Cyhoedd, Llywodraeth Cymru, Parc Cathays, Caerdydd, CF10 3NQ ac mae wedi ei gyhoeddi ar www.llyw.cymru.

en-gb	S.I. 2019/651.
cy-gb	O.S. 2019/651.

en-gb	The reference to “appropriate authority” in regulation 5(1) means, for regulations applying in relation to Wales, the Welsh Ministers (see regulation 5(4), to which there are amendments not relevant to these Regulations).
cy-gb	Mae’r cyfeiriad at “appropriate authority” yn rheoliad 5(1) yn golygu, ar gyfer rheoliadau sy’n gymwys o ran Cymru, Weinidogion Cymru (gweler rheoliad 5(4), y mae diwygiadau iddo nad ydynt yn berthnasol i’r Rheoliadau hyn).

en-gb	EUR 2002/178, to which there are amendments not relevant to these Regulations.
cy-gb	EUR 2002/178, y mae diwygiadau iddo nad ydynt yn berthnasol i’r Rheoliadau hyn.

en-gb	The reference in regulation 8(3) to the National Assembly for Wales now has effect as a reference to Senedd Cymru by virtue of section 150A(2) of the Government of Wales Act 2006 (c. 32).
cy-gb	Mae’r cyfeiriad yn rheoliad 8(3) at Gynulliad Cenedlaethol Cymru bellach yn cael effaith fel cyfeiriad at Senedd Cymru, yn rhinwedd adran 150A(2) o Ddeddf Llywodraeth Cymru 2006 (p. 32).

en-gb	See also section 37G of the Legislation (Wales) Act 2019 (anaw 4) for provision about the procedure that applies to this instrument.
cy-gb	Gweler hefyd adran 37G o Ddeddf Deddfwriaeth (Cymru) 2019 (dccc 4) am ddarpariaeth ynghylch y weithdrefn sy’n gymwys i’r offeryn hwn.

en-gb	S.I. 2019/651, amended by regulation 6(3)(b) of S.I. 2023/28 to add “magnesium citrate malate”; there are other amendments to Schedule 2 but none is relevant to these Regulations.
cy-gb	O.S. 2019/651, a ddiwygiwyd gan reoliad 6(3)(b) o O.S. 2023/28 i ychwanegu “magnesium citrate malate”; mae diwygiadau eraill i Atodlen 2 ond nid yw’r un ohonynt yn berthnasol i’r Rheoliadau hyn.