Sauna and minerals: Why water alone is not enough
Most people make one crucial mistake when using a sauna.They drink water... but don't replenish minerals.
Most people make one crucial mistake when using a sauna.
They drink water… but don't replenish minerals.
Imagine a classic sauna ritual. Hot air, the scent of wood, the body relaxes, and the first drops of sweat appear on the skin. A great feeling. But much more than just water leaves the body in these drops.
Sodium, potassium, magnesium, and calcium leave – electrolytes, without which the body cannot function properly.
And this is where the problem begins, which is surprisingly rarely discussed.
What happens in the body during a sauna session
Sauna use has a number of benefits – it improves blood circulation, supports regeneration, and helps relieve tension. However, the body reacts similarly to exercise – it raises its temperature and tries to regulate it by sweating.
During one sauna visit (2–3 sessions of 10–15 minutes each), you can lose:
- 0.5 to 1 liter of sweat
And that's not just water. It contains, for example:
- sodium
- potassium
- magnesium
- calcium
- chlorides
When you replace these substances with only water, an imbalance occurs.
The body gets fluids, but it lacks what it needs to use them properly.
How to recognize mineral deficiency after a sauna
Electrolyte deficiency often manifests itself subtly rather than dramatically:
- fatigue instead of expected energy
- headache
- muscle cramps or twitches
- feeling of heavy legs
- impaired concentration
- dry skin
You only drink water after the sauna and wonder why you don't feel well.
Why water alone is not enough
Water replenishes fluid volume but does not address its composition.
You might think of isotonic drinks. They contain electrolytes, but often also:
- sugar
- artificial sweeteners
- colorings
- flavorings
This is not entirely consistent with what saunas represent – a return to naturalness.
How to naturally replenish minerals after a sauna
There is a simple solution – replenish minerals in their natural form.
One option is Karlovy Vary thermal spring salt, which is created by evaporating mineral water from a natural spring.
It contains over 40 mineral substances, including:
- sodium and chlorides – for fluid balance
- potassium – for muscles and heart
- magnesium – for regeneration and relaxation
- calcium – for nerves and muscles
- bicarbonates – for digestion
The advantage? Minerals are in a natural form that the body absorbs well.
How to drink properly during a sauna session (practical guide)
Before the sauna
30 minutes beforehand, have a glass of water with a small amount of minerals.
During the sauna session
Sip in small sips. Do not drink large quantities at once.
After the sauna
Replenish fluids and electrolytes. This is where it's decided how you'll feel later.
Tip for wellness centers and operators
If you operate a sauna or wellness center, consider including Karlovy Vary thermal spring salt in your offer and try to offer clients a so-called mineral service:
- Mineral bar – water with minerals in the relaxation room
- Information cards – brief explanation of benefits
- Sales – packaging of thermal spring salt as an additional product that guests will be happy to take home
- Sauna ceremonies with a mineral ritual – combining the ritual with subsequent serving of mineral water as part of the experience
A small change that significantly improves the customer experience and differentiates you from the competition.
What to watch out for
- follow the recommended dosage
- consult a doctor for health restrictions (kidneys, high blood pressure, sodium-restricted diet, etc.)
- it is not a substitute for a varied diet
Summary: Sauna smartly, not just often
Sauna use is great – but only if you return to your body what it has lost.
Water is not enough. The body also needs minerals.
Just a small change and you'll notice the difference immediately – more energy, better regeneration, and no headaches.
Check out Karlovy Vary thermal spring salt and incorporate it into your sauna ritual.
Frequently Asked Questions (FAQ)
Is it enough to drink water after a sauna?
No. Water replenishes fluids, but not the minerals the body loses through sweating.
How to replenish electrolytes after a sauna?
Ideally in a natural form – for example, mineral water or natural sources of minerals.
Why do I get a headache after a sauna?
This is often a combination of dehydration and electrolyte deficiency.
Does sauna help with detoxification?
It promotes sweating and regeneration, but proper fluid and mineral replenishment is key.
