Mineral Water Guide
Still vs sparkling mineral water
Same minerals, different experience - here is what actually changes (and what does not).
One of the most common questions about mineral water is whether still and sparkling versions are really the same. The short answer: from a mineral standpoint, yes. But there are interesting differences worth understanding.
Where Does the Fizz Come From?
Sparkling water gets its bubbles from carbon dioxide (CO₂). But the source of that CO₂ can be very different:
Naturally sparkling
CO₂ is already dissolved in the water at the underground source. The water emerges carbonated naturally - a well-known example is Ferrarelle.
Artificially carbonated
CO₂ is added during bottling. The base water is naturally still, with carbonation introduced as a processing step. Most sparkling waters on the market fall into this category.
Does Carbonation Change Mineral Composition?
No.
Carbonation adds CO₂ gas to water but does not alter its mineral composition when the source is the same. The values printed on the label, such as sodium, calcium, magnesium, bicarbonate and fixed residue, remain the same. Still and sparkling waters sold under the same brand can have different mineral compositions when they come from different sources, so always check the label for the specific water.
This is why h2oMatch analyzes the mineral composition of the source, not whether the water is bottled still or sparkling. A still and a sparkling version of the same water are treated as one mineral profile.
What Carbonation Does Change
While minerals stay the same, carbonation does affect the drinking experience:
Mouthfeel
Sparkling water feels lighter and more refreshing due to the fizz on the tongue
Taste perception
CO₂ can slightly sharpen the perceived taste, making mineral flavors feel more defined
Pairing with food
Sparkling water is often preferred during meals as bubbles help cleanse the palate between bites
When to Choose Still vs Sparkling
Still water works well for
- Everyday hydration throughout the day
- During and after physical activity
- When you prefer a softer, smoother feel
Sparkling water works well for
- Pairing with meals
- When you want a more refreshing sensation
- As an alternative to sugary carbonated drinks
Same brand, different bubbles: what the data shows
The table lists carbonation variants separately, so their compositions can be checked rather than assumed.
| Water | Type | Fixed residue | Sodium | Calcium | Magnesium | Bicarbonate |
|---|---|---|---|---|---|---|
| Levissima Naturale (IT) | Still | 88 | 2.1 | 23.1 | 1.8 | 58 |
| Levissima Frizzante (IT) | Lightly sparkling | 88 | 2.1 | 23.1 | 1.8 | 58 |
| Levissima Intensamente frizzante (IT) | Sparkling | 88 | 2.1 | 23.1 | 1.8 | 58 |
| Font Vella Sigüenza (ES) | Still | 303 | 7.6 | 85.7 | 28.9 | 308 |
| Font Vella Sigüenza con gas (ES) | Sparkling | 303 | 7.6 | 85.7 | 28.9 | 308 |
| Ferrarelle ELECTA Naturale (IT) | Still | 280 | 9 | 60 | 14.3 | 260 |
| Ferrarelle Effervescente naturale (IT) | Naturally sparkling | 1,328 | 50 | 400 | 23 | 1,500 |
Values in mg/L from the h2oMatch database (producer label data).
The three Levissima variants and the two Font Vella Sigüenza variants list identical mineral values: here, carbonation is the only difference. Yet many people find the sparkling version sharper, because dissolved CO2 forms carbonic acid and stimulates the tongue differently.
Two waters sharing a brand name do not necessarily share the same mineral composition. For example, Ferrarelle ELECTA Naturale and Ferrarelle Effervescente Naturale have clearly different mineral profiles. That is why it is worth comparing the exact variant you buy.
Key takeaway
Still and sparkling versions of the same mineral water contain exactly the same minerals. Carbonation changes the experience - the feel, the freshness, the way it pairs with food - but not the composition.
Choose based on what you enjoy. What matters for your mineral intake is the water source, not whether it fizzes.
FAQ
Does carbonation change the mineral content of water?
No, not when the source is the same. Carbonation adds CO₂ gas but does not alter the water's mineral composition. Still and sparkling waters sold under the same brand can have different compositions when they come from different sources, so always check the label for the specific water.
Is sparkling water as healthy as still water?
From a mineral standpoint, yes. Still and sparkling versions from the same source contain the same minerals. The choice between them is primarily a matter of taste and personal preference.
What is naturally sparkling water?
Naturally sparkling water contains carbon dioxide dissolved at the underground source. It emerges already carbonated, unlike artificially sparkling water which has CO₂ added during bottling.
Should I choose still or sparkling mineral water?
It depends on your preference. Sparkling water can feel more refreshing and pairs well with meals, while still water is often preferred for everyday hydration. The mineral content is the same either way.