Water makes up more than 60% of our bodies. We need it to think, move, breathe—in short, to live. So it’s no surprise that when something feels off—when we’re anxious, tired, or even ill—our bodies instinctively seek water’s healing touch.
Some waters, thanks to their origin, composition, and temperature, do far more than simply hydrate us. We’re talking about waters with real therapeutic properties: medicinal waters.
These healing waters emerge from the earth rich in minerals and benefits, capable of relieving physical ailments, calming the mind, and helping us restore balance. In this article, we’ll explain what makes them so special and why immersing yourself in them might be just what your body needs.
What are medicinal waters?
Medicinal waters are those that, due to their mineral content and physical-chemical properties, offer therapeutic health benefits. Since ancient times, they’ve been used to treat various ailments and improve overall well-being—and today, they’re still used in spas like ours.
Their healing power comes from the presence of minerals such as sulfur, sodium, calcium, and magnesium, which—combined with the water’s high temperature and other factors like the pressure with which they emerge—have a profoundly positive effect on our bodies.
However, to be officially recognized as medicinal, these waters must be declared of Public Utility and supported by scientific studies validating their healing properties.
Types of medicinal waters
The National Association of Spas in Spain (ANBAL) classifies medicinal waters based on their predominant chemical composition, which produces various beneficial effects on the body.
Here are the main types of mineral-medicinal waters:
Chloride waters
Among the most commonly used in balneotherapy due to their versatility, chloride waters are rich in chloride and sodium ions. They are especially effective for respiratory and dermatological treatments thanks to their anti-inflammatory and antiseptic properties. Their ability to stimulate digestion also makes them valuable for enhancing overall well-being.
Sulfated waters
Known for their digestive benefits, sulfated waters contain calcium, sodium, or magnesium sulfates. Their laxative and choleretic effects support liver and gallbladder function. They are also effective for respiratory and dermatological treatments.
Sodium-rich waters
These waters, high in sodium, stimulate gastric secretion and improve digestion. They also have diuretic properties, which help regulate the body’s water balance.
Calcium-rich waters
With a high calcium content, these waters strengthen bones and help prevent osteoporosis. Their sedative effects also make them useful for nervous and muscular disorders.
Radioactive waters
Despite the name, radioactive waters simply contain small amounts of radon, a naturally occurring gas with proven therapeutic effects. These waters are commonly used to relieve rheumatic pain and improve joint mobility due to their analgesic and anti-inflammatory properties.
Bicarbonated waters
Rich in bicarbonate, these waters help neutralize stomach acid and aid digestion. They are especially recommended for gastritis and support liver and biliary functions.
Carbonated waters
Containing dissolved carbon dioxide, these waters have a strong vasodilatory effect. They are used in cardiovascular treatments as they improve circulation and may help lower blood pressure.
Ferruginous waters
High in iron content, these waters are excellent for combating anemia and chronic fatigue. The iron is easily absorbed, helping boost hemoglobin levels in the blood.
Fluoridated waters
These waters contain significant amounts of fluoride, which strengthens tooth enamel and prevents cavities. They are also used in osteoporosis treatments.
Magnesium-rich waters
High in magnesium, these waters have laxative effects and are helpful for digestive issues like constipation. Magnesium also supports nervous and muscular system function.
Oligometallic waters
Very low in minerals, these waters are known for their gentleness and high tolerance, even on sensitive skin. They are ideal for hydration and skincare treatments.
Sulfurous waters
Rich in sulfur compounds, these waters have anti-inflammatory, antiseptic, and detoxifying properties. They are used to treat skin conditions, rheumatism, and respiratory problems.
Medicinal waters at Balneario de Fitero
Did you know that medicinal waters offer their greatest benefits right at their source? That’s exactly what happens at Balneario de Fitero, located in Navarra, and one of the oldest thermal spas in Spain.
The properties of our spa’s water are truly exceptional. Our mineral-medicinal waters emerge at a temperature of 52°C, making them hyperthermal. Their strong mineralization allows them to be classified as sulfated, chloride-rich, sodium-rich, calcium-rich, and radioactive.
If you suffer from osteoarthritis, arthritis, osteoporosis, fibromyalgia, chronic bronchitis, sinusitis, skin problems, anxiety or stress, immersing yourself in these waters might be just what you need.
Beyond their therapeutic effects, the natural surroundings of our spa create a setting for holistic wellness. Here, you can combine hydrothermal treatments with relaxation activities, healthy leisure options, and complementary techniques. Best of all, it’s an ideal destination for all ages, including children.
If you’re in the mood for a rejuvenating getaway and want to experience the full benefits of medicinal waters, don’t wait any longer. Book your stay at Balneario de Fitero and go with the flow!
