Gas isn't that important, it just helps generate more oxygen in the blood eventually, once turns into nitrogen in the intestines and carbon dioxide and that whole process. It is kind of a slight antiseptic because the carbon dioxide is a kind of a hydroegen peroxide.
It's like, if you get a stain, let's say you get something with blood on it and you just put the carbonated water on it. Stains come right out. It'll bleach your material if you don't wash it out with plain water.
So, if you get that carbon out, it won't have that type of reaction again.
So, it helps clear and clarify some things in the body. That's the only water that I drink.