Water cure is a particular therapy that avails itself of the introduction of a certain type and quantity of water in our body. Drinking, it produces significant therapeutic effects on the organism.
The principal function of this low residue treatment is a considerable increase of the speed with which our organism depurates, excluding the degradation and waste substances; in other words through the low residue water cure our organism detoxicate itself faster.
The detoxication process of our organism, which cannot prescind from an adequate food, physical and environmental hygiene, happens, essentially, through the action of four important organs which eliminate the drosses from our body:
The water operates on the above-mentioned four organs at the same time, making faster the process eliminating the drosses.

The leading lines of the food consumer's goods of Italians, proposed by the Health Ministry (LARN), suggest to take a millimetre of water each day per each consumed kilocalorie; so, a medium physique man which doesn't do much physical activity should ingest 2 litres-2 litres and a half about of it, while a woman with the same characteristic 1,7-2 litres. In the low residue water cures such quantities could also treble.
Not all the water cures are the same and cannot have the same effects: the different is given by the kind of water.
Many enquiries demonstrate that mineral water is not simply a drink, but it has got biological characteristics which are present in the elements which are dissolved in it. These last give it importance and different properties.
The knowledge of the different kinds of the drinking mineral waters, which are classified on the basis of their 180° FIXED RESIDUE is very important. This value that, by law, must be written on each label of a mineral water on the market, expresses the total quantity of the salts which are dissolved in the water: so a low fixed residue identifies water with few salts, so-called "light" and vice versa.
Mineral waters are so classified:
Minimally mineralized waters they are mineral waters with a fixed residue, lower than or equal to 50 mg /lit
Low in a mineral content waters they are mineral waters with a fixed residue included between 51 and 500 mg/lit
Medium mineral waters they are mineral waters with a fixed residue included between 501 and 1500 mg/lit
High in a mineral content waters they are mineral waters with a fixed residue higher than 1500 mg/lit
The low residue water cure, provides for the taking of high quantities of minimally mineralized water (3, 4, 5 litres per day); this kind of water present, as already said, a low quantity of dissolved salts, so its intestinal assimilation is very fast.
This makes the already mentioned depurating process very quick and makes the increase of diuresis easy without straining the loins.
Nevertheless we must remember that the minimally mineralized water is not good to reintegrate the mineral salts in our organism (for example after a plentiful sweat) because it's "poor" in salts.
During the low residue water cure, the water can be taken in any moment during the day even if it's better to drink it on an empty stomach, not cold and not charged with gas, in order to make easy the speed of assimilation.