Kangen Water (aka electrolyzed reduced water (ERW), or hydrogen water) begins as tap water. The Enagic® machine filters out chlorine and other impurities from the tap water, then separates the hydrogen and oxygen with a process known as electrolysis. This process adds an electron to the hydrogen creating a new molecule called diatomic molecular hydrogen gas. When this is added to your drinking water, it produces antioxidant-rich Kangen Water® Oxidant, by definition, is an oxidizing agent, while antioxidant is any substance that acts to slow or prevent the oxidation of another chemical.
In the human body, oxidative damage plays a huge role in many of our modern day diseases such as cancer, heart disease, and diabetes. Antioxidants, on the other hand, act to tame the free radicals (or highly reactive chemicals) in the body that have potential to harm cells and cause disease.