Posted by Rasmus Lythcke
on June 30, 2025
Why are electrolytes good to consume when going to the sauna? A scientific explanation
Sauna is a popular way to relax, cleanse the body and improve health. But it is also an intense physical experience, where the body is exposed to heat, sweats profusely and loses fluids. In this context, electrolytes play an important role in maintaining the body's balance and optimizing the benefits of a sauna bath.
What are electrolytes?
Electrolytes are minerals that can conduct electricity in the body, including sodium, potassium, magnesium, calcium, and chloride. These minerals are essential for a wide range of bodily functions, such as nerve signaling, muscle contraction, fluid balance, and pH regulation.
1. Prevents dehydration and balances fluids
When you sweat in the sauna, you lose fluids and electrolytes. If this deficiency is not replenished, it can lead to dehydration, fatigue and dizziness. By consuming electrolytes, you can help your body maintain the proper fluid balance and prevent the negative effects of fluid loss.
2. Improves muscle function and prevents cramps
A lack of electrolytes, especially magnesium and potassium, is a common cause of muscle cramps. When you use a sauna regularly or sweat heavily, electrolyte loss can lead to muscle pain or cramps. Supplementing with electrolytes ensures that your muscles function optimally and minimizes the risk of cramps.
3. Promotes recovery and well-being
Electrolytes play a key role in the functioning of the nervous system. When the balance is correct, you may experience less fatigue and increased well-being after a sauna. This is especially relevant for people who use a sauna as part of a training regimen, as electrolytes help speed up muscle recovery.
4. Supports the body's natural detox processes
Although saunas help to excrete waste products through sweat, electrolytes can help the body handle this process better. A proper electrolyte balance supports the body's ability to cleanse itself and reduces stress on the kidneys.
How can electrolytes be supplemented?
Electrolytes come in various forms, such as drinks, tablets, or powders, designed for athletes and people who sweat a lot. It's important to choose products with a balanced amount of sodium, potassium, magnesium, and calcium. Natural alternatives include coconut water and homemade electrolyte drinks.
Conclusion
Going to the sauna is a great way to relax and improve your health, but it can lead to fluid and electrolyte loss, which must be replenished to keep the body healthy and efficient. By supplementing with electrolytes, you can maintain balance, prevent cramps, improve recovery, and get the most out of your sauna day.
Always remember to listen to your body and make sure to hydrate properly before, during and after the sauna. If you have any health concerns, you should consult a professional before changing your habits.
