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Highest Magnesium Mineral Waters in Europe
Discover mineral waters with high magnesium levels, based on official label data.
In the EU, natural mineral water may be labelled ‘contains magnesium’ above 50 mg/L. Several waters in this ranking exceed twice that level. At those concentrations, magnesium is no longer just a trace mineral on the label; it becomes a defining part of the water’s mineral profile.
Highest Magnesium Mineral Waters in Europe (Top Selection)
| Water | Country | Magnesium (mg/L) |
|---|---|---|
| Donat Mg* | 🇸🇮 Slovenia | 1040 |
| Rozana | 🇫🇷 France | 160 |
| Apollinaris | 🇩🇪 Germany | 120 |
| Hépar | 🇫🇷 France | 119 |
| GerolsteinerFeinperlig · Medium · Sprudel | 🇩🇪 Germany | 108 |
* Donat Mg is exceptionally highly mineralized. It can be consumed daily in appropriate quantities, but because of its very high overall mineral content, it is better considered a functional mineral water rather than a primary everyday hydration water.
Magnesium content alone does not determine whether a water is a good everyday choice. Overall mineralization, calcium-to-magnesium balance, bicarbonate, sodium and carbonation can make high-magnesium waters quite different from one another.
Many of the magnesium-rich waters near the top of this ranking are sparkling or naturally carbonated. Carbonation is not required for a water to be high in magnesium, so check the carbonation type alongside the mineral profile when comparing waters.
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Get your h2oMatch recommendationMagnesium in European Mineral Water
Magnesium levels in mineral water are strongly influenced by source geology. Water moving through magnesium-bearing formations such as dolomite and certain volcanic rocks can dissolve substantially more magnesium than water from other geological environments. This helps explain why magnesium concentrations vary so widely between European sources.
High Magnesium Waters by Country
Explore magnesium-rich mineral waters available in specific countries.
France
Explore magnesium-rich mineral waters from France, including volcanic Massif Central sources.
View Waters 🇩🇪Germany
Explore magnesium-rich mineral waters in Germany
View Waters 🇮🇹Italy
Discover high magnesium waters available in Italy
View Waters 🇷🇴Romania
Find magnesium-rich options available in Romania
View Waters 🇬🇧United Kingdom
Discover high magnesium mineral waters available in the UK market, from domestic and imported sources.
View Waters 🇪🇸Spain
Discover mineral waters with the highest magnesium content in the Spanish market.
View Waters 🇨🇭Switzerland
Explore high magnesium mineral waters in Switzerland
View Waters 🇦🇹Austria
Explore high magnesium mineral waters in Austria
View Waters 🇺🇸United States
Discover the highest magnesium imported European mineral waters available in the United States
View WatersFAQ
How should I compare the magnesium values in this ranking?
All values are declared label values in mg/L, so rows can be compared directly across brands and countries. Under EU natural mineral water rules, the indication 'contains magnesium' may be used when magnesium exceeds 50 mg/L. Donat Mg is marked with an asterisk because its overall mineralization is far higher than typical table waters. For options available in your market, open the country-specific rankings below the table.
Which is the highest magnesium mineral water in Europe?
Donat Mg (Slovenia, 1040 mg/L) leads Europe by a wide margin — a special-purpose, highly mineralized water consumed in small doses. Among everyday table waters, Rozana (France, 160 mg/L) and Apollinaris (Germany, 120 mg/L) rank highest.
Can drinking high-magnesium water have side effects?
Higher magnesium intake can cause loose stools in some people, particularly when magnesium is accompanied by substantial sulfate levels. Very highly mineralized waters such as Donat Mg are generally consumed in smaller quantities rather than used as the sole source of everyday hydration. Individual tolerance and the water's overall mineral composition both matter. People with kidney disease or medically prescribed restrictions on mineral or sodium intake should seek professional guidance before regularly consuming very highly mineralized waters.
All values are based on official mineral water labels and the h2oMatch database.