The major premise of this book is that oxygen heals. Low oxygen equals low pH. Increase oxygen and the pH goes up, making it hard for anaerobic pathogens to exist. He shows how to increase oxygen and test pH. He tells you what numbers to aim for.
Disease comes from inside, not from outside, the body. The internal terrain, at the cellular level, is the focus of health or disease. A sick internal milieu attracts pathogens like garbage attracts rats. Instead of being in the KILL mode, healing should be in the CLEAN UP mode. Degenerative disease is a vicious cycle of acidification caused by oxygen blockages at the cellular level. Agreed. All this makes sense.
But I have reservations. On page 36 he claims that bacteria can change into viruses. That sounds dubious to me, but I'm not a scientist. He advises against distilled water, saying that it has no bioavailable minerals. So what? Neither do spring water and tap water! The minerals in spring water are harmful. The body cannot use them. He says on page 78 that "the body needs living minerals coming from living foods." Agreed! And you won't find living minerals in spring water. He says that drinking distilled water "leaches valuable minerals from your body." I have never seen any evidence to support this. Anyway, there is no need to drink any kind of water if you eat raw food. He recommends drinking lots of water but I agree with Dr. Emmet Densmore, who said, "Digestion goes forward much better when the gastric juice is not diluted with fluids."
There are some very quotable lines in this book. The description of the US health care system on page 65 is right on target. This book may be a bit of an oversimplification, but most of it makes very good sense.