Now as to the argument that distilled water leaches out minerals. This is true, and this is exactly what we want it to do. The minerals it leaches out are of the unusable, ionic form and we want these to leave the body rather than be deposited and cause disease. Distilled water does not leach out significant amounts of biologically available minerals because these are quickly taken up by the body on an as needed basis. If they are present in excess then they are filtered through the kidneys and this is exactly what needs to happen with all things which are in excess in the circulation. Distilled water cleanses the body through promoting healthy kidney function.
Finally, if mineral water is not a good source of biologically available minerals, then what is? Think about it. Minerals are present in the ground and must be biologically bound in order to be used by the body. Where would that come from? Plants, of course! Your mineral source should be plants not water. The purpose of water is to cleanse the body. To do the best job of that, it must be free of everything else. Only distilled water fits that bill.
Mineral waters. Again, water is water and most bottled varieties will rehydrate the body effectively. Mineral water can come from a natural well or spring, but must contain a specified amount of trace minerals. These minerals, such as calcium and magnesium, are essential for good health. There is no difference between sparkling and non-sparkling mineral waters except for the concentration of carbon dioxide. Both varieties contain a higher concentration of minerals than either spring or well water. Because the water must meet specific requirements, the number of water sources that qualify is very limited. Most of the popular varieties of mineral waters are bottled in Europe and imported to the United States. This means that bottled mineral water is going to be more expensive than other types, but the benefits of the added minerals are measurable. Mineral water may be more of a treat than a daily refreshment, but it does offer some health benefits. Some may find the taste to be harsher than traditional water, but many bottlers offer flavored varieties that may be more palatable.