Health benefits of water

Water is the main component of the human body and plays an essential role in its proper functioning. Find out about its role, its benefits and sensible everyday habits.

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Water and your body

Water is a major constituent of the body. It represents about 2/3 of the adult's body weight (even more in children). The human body eliminates 2.5 litres of water every day through breathing, sweating and elimination of waste (urine and faeces). Water is essential to your body:

  • it allows the digestion of food, the absorption of nutrients and the elimination of waste;
  • it maintains body temperature;
  • a major component of blood, it helps maintain blood pressure and transport nutrients, hormones and oxygen around the body.

How to rehydrate your body

Food (fruit, vegetables, meat, etc.) partially compensates for your water loss, but to avoid any risk of dehydration, you must drink enough: at least 1.5 litres per day (= 6 large glasses), or even more in hot weather or during physical activity.

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It isn’t always advisable to wait until you’re thirsty to rehydrate your body. Drinking water even without being thirsty is a good habit to adopt! In addition, tap water can contribute to the intake of minerals (calcium, magnesium, sodium), the content of which varies from one geographical region to another. These minerals contribute to the proper functioning of the body.


Water and hygiene

Water ensures cleanliness and well-being. Daily hygiene protects you from many viruses and germs. 

Cleaning with water is an excellent way to keep your living space clean. The water washes away dirt and removes some of the microbes that are invisible to the naked eye.

Sensible everyday habits:

  • wash your hands after using the toilet, before cooking, eating, after petting an animal or working with your hands;
  • brush your teeth after every meal;
  • regularly clean wet surfaces (sinks, bathtubs, etc.) and floors, which are ideal for bacterial growth;
  • wash fruit and vegetables thoroughly before eating them;
  • rinse bottles and jugs of water properly before use.


For more information

A few tips on how to make water a key part of a healthy lifestyle.

See the brochure