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Low Sodium Mineral Water in the UK: Top 5 Compared
Among the mineral waters available in the UK in the h2oMatch database, these have the lowest sodium values.
The United Kingdom has a relatively limited number of domestic natural mineral water sources compared to countries like Italy, France, or Germany. However, the UK market benefits from a wide selection of imported mineral waters, many of which have very low sodium levels.
Mineral waters with the least sodium in the UK — top 5 by sodium content.
The following table ranks natural mineral waters available in the UK by their sodium content, from lowest to highest.
| Water | Sodium (mg/L) | Fixed residue (mg/L) |
|---|---|---|
| Aqua Carpatica Still | 0.6 | 197 |
| VOSS STILL | 3 | 40 |
| Brecon Carreg | 5 | 210 |
| Deeside | 6 | 60 |
| Evian | 6.5 | 345 |
The table is sorted by sodium content, while fixed residue provides context for the overall mineral profile. Low sodium does not necessarily mean low overall mineralization: Aqua Carpatica ranks first for sodium but has a considerably higher fixed residue than VOSS or Deeside.
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Get your h2oMatch recommendationSodium in UK mineral waters
This mix of sources means that while a domestic option like Brecon Carreg from Wales is available, the very lowest sodium options are imported, such as Aqua Carpatica from Romania and VOSS from Norway.
All waters in this ranking are considered suitable for low-sodium diets, as they are well under the official threshold of 20 mg/L of sodium. Two litres of any of them provide less than 40 mg of sodium, compared with the WHO recommendation of less than 2000 mg per day.
Want to understand why sodium matters? Read our guide on sodium in mineral water →
Explore low-sodium waters across Europe and by country
Compare UK market waters with the lowest sodium mineral waters across Europe, or explore options in other countries.
Explore Other Water Profiles in United Kingdom
Looking for a different mineral balance? Explore other types of mineral waters available in United Kingdom.
FAQ
Which mineral water has the least sodium in the UK?
Aqua Carpatica has the lowest sodium content among mineral waters widely available in the UK, at 0.6 mg/L.
Is there a sodium-free mineral water?
No, every natural mineral water contains at least traces of sodium. The lowest available on the UK market, Aqua Carpatica, has 0.6 mg/L.
How much sodium do two litres of low-sodium water add?
Two litres of Aqua Carpatica provide 1.2 mg of sodium, compared with the WHO recommendation of less than 2000 mg per day.
Does low sodium mean a light water?
No, the two values are independent. Aqua Carpatica pairs the market's lowest sodium with 197 mg/L of fixed residue, while Deeside combines 6 mg/L of sodium with just a fixed residue of 60 mg/L. Check both numbers on the label.
When is a water suitable for low-sodium diets?
A water is officially considered suitable for a low-sodium diet when its sodium content is below 20 mg/L.
All values are based on official mineral water labels and the h2oMatch database.