CompoAtlas

Magnesium in food supplements

12,805 supplements declared in France contain a form of this nutrient

Magnesium: in France, a food supplement may not provide more than 300 mg a day (Order of 9 May 2006, not revised since November 2006, Annex III); for adults, EFSA's upper safe limit is 250 mg a day (added intakes only); the French maximum is above this limit: a supplement that complies with the Order can on its own exceed EFSA's upper safe limit. The doses of the 2006 Order have not been revised since the amending Order of 14 November 2006, and some were annulled by the Conseil d'État in 2011; the DGCCRF accepted higher levels for some nutrients through guidelines published until January 2019, and an update of the Order is being prepared (ministerial answer published in the Official Journal on 11 February 2025).

Order of 9 May 2006, Annex III. French orders of 9 May 2006 and 14 November 2006 as published in the Official Journal (maximum daily doses), retrieved 21 October 2026.

EFSA, Overview on Tolerable Upper Intake Levels (version 11, August 2025), retrieved 21 October 2026.

Written Question No 2686, ministry answer published in the Official Journal on 11 February 2025.

In plain words

À quoi il sert, selon les fabricants

Objectifs les plus souvent annoncés pour les compléments qui en contiennent (magnésium) : système nerveux (2204 produits), sport (1853 produits), immunité (1110 produits), sommeil (916 produits), os (871 produits).

Ce sont les objectifs déclarés par les fabricants à l'administration, pas des effets démontrés. Sur l'emballage, seules les allégations de santé autorisées par l'Union peuvent être écrites.

Compl'Alim, food supplement declarations (France), retrieved 23 October 2026.

Jusqu'où c'est sûr

Pour un adulte, l'EFSAEuropean Food Safety Authority. fixe la limite supérieure de sécurité à 250 mg/j : c'est l'apport quotidien qui, pris sur le long terme, ne devrait pas provoquer d'effet indésirable. Au-delà, le risque augmente. Un complément n'est qu'une partie de l'apport.

Précision de l'EFSA : Sels de magnésium facilement dissociables et composés comme MgO dans les compléments, l'eau ou ajoutés aux aliments ; n'inclut pas le magnésium naturellement présent dans les aliments.

EFSA, Overview on Tolerable Upper Intake Levels (version 11, August 2025), retrieved 21 October 2026.

La règle en France

En France, la dose journalière recommandée d'un complément ne doit pas apporter plus de 300 mg (arrêté du 9 mai 2006, non révisé depuis novembre 2006). Compl'Alim ne publie pas la dose des produits déclarés : comparez celle de l'étiquette à ce plafond et à la limite de sécurité de l'EFSA.

French orders of 9 May 2006 and 14 November 2006 as published in the Official Journal (maximum daily doses), retrieved 21 October 2026.

EFSA safety references

Pour ce nutriment, le repère de l'EFSA ne porte que sur les apports ajoutés (compléments, aliments enrichis), pas sur ce qu'apporte l'alimentation courante.

EFSA daily references
PopulationTypeValue
1-3 yearsUpper limitnot defined
4-6 yearsUpper limit250 mg/j
7-10 yearsUpper limit250 mg/j
11-14 yearsUpper limit250 mg/j
15-17 yearsUpper limit250 mg/j
adultsUpper limit250 mg/j
pregnancyUpper limit250 mg/j
breastfeedingUpper limit250 mg/j

Readily dissociable magnesium salts and compounds such as MgO in supplements, water or added to foods; excludes magnesium naturally present in foods

SCF, 2001b. EFSA, Overview on Tolerable Upper Intake Levels (version 11, August 2025), retrieved 21 October 2026.

Maximum dose in France

Maximum daily dose per supplement in France: 300 mg, according to the Order of 9 May 2006.

The doses of the 2006 Order have not been revised since the amending Order of 14 November 2006, and some were annulled by the Conseil d'État in 2011; the DGCCRF accepted higher levels for some nutrients through guidelines published until January 2019, and an update of the Order is being prepared (ministerial answer published in the Official Journal on 11 February 2025).

Order of 9 May 2006, Annex III. French orders of 9 May 2006 and 14 November 2006 as published in the Official Journal (maximum daily doses), retrieved 21 October 2026.

Authorised health claims

  • « Magnesium contributes to a reduction of tiredness and fatigue »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
  • « Magnesium contributes to electrolyte balance »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
  • « Magnesium contributes to normal energy-yielding metabolism »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
  • « Magnesium contributes to normal functioning of the nervous system »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
  • « Magnesium contributes to normal muscle function »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
  • « Magnesium contributes to normal protein synthesis »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
  • « Magnesium contributes to normal psychological function »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
  • « Magnesium contributes to the maintenance of normal bones »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
  • « Magnesium contributes to the maintenance of normal teeth »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006.
  • « Magnesium has a role in the process of cell division »
    Conditions: The claim may be used only for food which is at least a source of magnesium as referred to in the claim SOURCE OF [NAME OF VITAMIN/S] AND/OR [NAME OF MINERAL/S] as listed in the Annex to Regulation (EC) No 1924/2006
9 refused or revoked claims: they cannot appear on packaging
  • « An adequate magnesium intake can support to maintain normal blood pressure »
    Reason: Non-compliance with the Regulation because on the basis of the scientific evidence assessed, the evidence provided is insufficient to substantiate this claimed effect for this food.
  • « Helps to maintain acid-base balance. Helps to decrease dietary acid load. Helps in case of occasional gastric acidity. Contributes to decrease gastric acidity. »
    Reason: Non-compliance with the Regulation because on the basis of the scientific evidence assessed, this claimed effect for this food is not a beneficial physiological effect as required by the Regulation.
  • « Magnesium contributes to meeting the increased requirement for magnesium in pregnant women, so it could help the normal course of pregnancy and delivery and birth of a healthy baby. »
    Reason: Non-compliance with the Regulation because on the basis of the scientific evidence assessed, this claimed effect for this food has not been substantiated.
  • « Magnesium contributes to the maintenance of hormonal health Magnesium helps to maintain hormonal health. Magnesium is an essential co-factor in fatty acid metabolism which impacts on hormonal health. »
    Reason: Non-compliance with the Regulation because on the basis of the scientific evidence assessed, this claimed effect for this food is not sufficiently defined to be able to be assessed and the claim could not therefore be substantiated.
  • « Magnesium has antioxidative properties It prolongs the ageing process »
    Reason: Non-compliance with the Regulation because on the basis of the scientific evidence assessed, this claimed effect for this food has not been substantiated.
  • « Magnesium is necessary for normal blood clotting »
    Reason: Non-compliance with the Regulation because on the basis of the scientific evidence assessed, this claimed effect for this food has not been substantiated.
  • « Magnesium maintains healthy immune system »
    Reason: Non-compliance with the Regulation because on the basis of the scientific evidence assessed, this claimed effect for this food has not been substantiated.
  • « Regulates blood pressure. »
    Reason: Non-compliance with the Regulation because on the basis of the scientific evidence assessed, the evidence provided is insufficient to substantiate this claimed effect for this food.
  • « Regulates sugar balance. »
    Reason: Non-compliance with the Regulation because on the basis of the scientific evidence assessed, this claimed effect for this food has not been substantiated.

Official English text, as entered in the Union register. A claim may only be used under its conditions.

10 authorised claims, 9 refused or revoked. EU Register of nutrition and health claims, retrieved 21 October 2026.

Forms declared in supplements

Union list: vitamin and mineral forms that may be used in a food supplement (Directive 2002/46/EC, Annex II).

Directive 2002/46/EC on food supplements, latest consolidated version (Annex II: forms of vitamins and minerals), retrieved 23 October 2026.

In cosmetics: MAGNESIUM SULFATE.

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