I have read earlier about the distillled water study. The study was conducted in the US suggests that distilled water made from municipal water resources contains higher concentrations of carcinogenic substances than plain tap water and other types of bottled water. The study concluded that the interaction between chlorine and organic compounds is a major cause of cancer-casuing substances taht become concentrated during the distillation process. This is an important discovery as many people believe that distlled water is safest because the process of distillation was previously thought to remove all elements taht could be harnful to the body.