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Magnesia

Magnesia is a natural mineral water from Mnichov near Mariánské Lázně with about 170 mg/L of magnesium, one of the highest of everyday mineral waters. — as described by the brand

7.2/10Waterphile Score8/9 properties published

pHNot published −0.1—
TDS788 mg/L ideal 225–500 mg/L3.1
Sodium6.2 mg/L ideal up to 20 mg/L10.0
Calcium37.4 mg/L ideal 36.7–80 mg/L · counts half9.1
Magnesium170 mg/L ideal 16.7–30 mg/L · counts half0.0
Sulfate11.1 mg/L ideal up to 248 mg/L10.0
Chloride2.1 mg/L ideal up to 250 mg/L10.0
Nitrate0.3 mg/L ideal up to 10 mg/L10.0
Bicarbonate970 mg/L ideal 30–396.6 mg/L · counts half0.0

Each bar is out of 10 for that property. Deductions: −0.1 for missing values. Editorial score, not a health rating. How scores work →

Mineral FactsPer litre · 9 of 11 values published

Basics

—

Total dissolved solids TDS

788 mg/L

Minerals

Calcium

37.4 mg/L

Magnesium

170 mg/L

Sodium

6.2 mg/L

Potassium

1.4 mg/L

Other dissolved substances

Bicarbonate

970 mg/L

Sulfate

11.1 mg/L

Chloride

2.1 mg/L

Nitrate (NO₃)

0.3 mg/L

Silica

—

— Not published by the brand · we never estimateSource: Státní zdravotní ústav (Czech National Institute of Public Health) – 'Přehled balených vod… a jejich základní minerálové složení', February 2025 · checked 2026-10-26

Values from the SZÚ February 2025 overview (compiled by the regulator from labels, producers' sites and SZÚ analyses; some rows date from 2015). 'Rozpuštěné látky' (dissolved solids, dried residue after filtration) stored as TDS; 'celková mineralizace' (sum of ions) kept only in all-values.csv. Magnesia's own site lists Mg 172, Ca 35.7, Na 5.2, SO4 10.2, HCO3 950, dissolved solids 736 mg/L (newer label).

How it stands out

Sodium is 6.2 mg/L, under the 20 mg/L level the UK/EU uses for “suitable for a low-sodium diet” on natural mineral water labels.

UK/EU label thresholds met

Applied to the published numbers for information; these indications legally apply to natural mineral water labels.

Contains bicarbonate (> 600 mg/L)
Contains magnesium (> 50 mg/L)
Suitable for a low-sodium diet (sodium < 20 mg/L)

Taste notes

No taste notes yet. Soon you will be able to say how Magnesia tastes to you. Results will appear here once people have voted; nothing is shown until then.

SoftNo votes
CrispNo votes
SmoothNo votes
MineralNo votes
SaltyNo votes
SweetNo votes
BitterNo votes
MetallicNo votes

Ratings & reviews

Waterphile Score lab data

7.2/10

From the brand’s published mineral values. How it works

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Similar waters

Computed from published numbers only: the waters whose mineral values are closest to Magnesia’s on a log scale, using the values both brands publish as single numbers (at least 5). pH and nitrate are not used. Similar minerals do not mean similar taste.

Source & spring

Source	Mnichov near Mariánské Lázně, Czech Republic
Country	Czech Republic · all waters from Czech Republic
Water type	Natural mineral water · what this means
Still or sparkling	Still
Data source	Státní zdravotní ústav (Czech National Institute of Public Health) – 'Přehled balených vod… a jejich základní minerálové složení', February 2025 Last checked 2026-10-26

Brands update their analyses from time to time, and values can differ between bottle sizes, plants and batches. Check the label on your bottle. Spotted a change? See corrections.

Where to buy

See the official Magnesia website for stockists. Retailer and price links are coming later.

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Not medical advice. Waterphile shows mineral values as published by each brand, for general information only. If you have a health condition, follow a restricted diet or prepare infant formula, ask a doctor, pediatrician or health visitor.