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Magnesium Sulphate

Magnesium sulphate is an inorganic salt commonly used as a food additive (E518) and supplement. It serves as a magnesium source and is used for electrolyte replenishment. It is generally recognized as safe (GRAS) for consumption in regulated amounts but excessive intake may cause laxative effects.

Mineral or nutrientUpdated Feb 25, 2026
Health score+2.0
-5Good5

Water guidelines

Legal limit
Not specified
Health guideline
Not specified

Food and supplement guidelines

Legal limit
Not specified
Health guideline
Not specified

Risks

Laxative effect, gastrointestinal discomfort in high doses, potential electrolyte imbalance if overused

Benefits

Magnesium source, supports muscle and nerve function, metabolic processes, bone health

References

Waters containing Magnesium Sulphate

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