At a time when obesity has been recognised as a serious public health problem, water – devoid of calories – is recommended by nutritionists to hydrate oneself regularly throughout the day. This recommendation applies particularly to children who are without a doubt the population the most at risk of obesity. When a child is used to satisfying thirst with beverages other than water, it is possible that the child may start to confuse thirst and sugar cravings. The risk of excessive sugar intake, a factor in obesity, then becomes major.

Dieting results in increased production of body wastes. To facilitate elimination, it is particularly important to drink at least 1.5 litres of water a day. This quantity should be adapted depending upon physical activity and climate. Furthermore, restricting food intake risks creating mineral deficiencies. Some natural mineral waters can help compensate for this deficit while promoting waste elimination.