Water, a carrier for nutritional elements
Water is necessary for the life of the cell because it delivers the nutritional elements it needs, like minerals (sodium, potassium, calcium…), trace elements (iodine, selenium, zinc…) and vitamins. Water is also an excellent solvent for glucose (the main fuel of the brain) and the amino acids necessary for the synthesis of proteins in cells (1).
Did you know?
The water in the body’s cells represents approximately 42 liters of water for a man weighing 70 kilos (2).
But water is not just a passive carrier; it also plays an active role in metabolic reactions
How much water does your body need?
Total Water requirements are particularly elevated during periods of growth (3), increasing from a recommendation of 1.3 liters per day (total water consumption from drinks and food) for a child 2-3 years old to 2 or 2.5 liters a day for an adult (women and men, respectively) as defined in Europe by the EFSA
On average, 20-30% of water intake comes from food (mainly vegetables and fruits) and 70-80% from drinks (4).
So, for an healthy sedentary adult living in a temperate climate, at least 1.5 liters of water should be drunk each day. Naturally, this quantity must be adapted to the age, gender, climate, and level of physical activity
Related on Nestlé Waters:
How much water is in the human body?
Are you sure you drink enough?
Water resource management
Sources: Haüssinger D., Biochemical Journal, 1996; Jequier E., Constant F., Cahiers de nutrition et de diététique, 2009; Courbebaisse M., Cahiers de nutrition et de diététique, 2015; European Food Safety Authority Journal, 2010; Courbebaisse M., Cahiers de nutrition et de diététique, 2015