“It's always important to keep the fluids in our bodies slightly alkaline in order for all the functions to take place. If our blood becomes slightly acidic we would immediately die, so the body compensates by pulling minerals from the bones to keep us alkaline.”
Dr Arthur Guyton, MD, one of the most recognized authors on human physiology, from his book Textbook of Medical Physiology
"The first step in maintaining health is to alkalize the body. The cells of a healthy body are alkaline, while the cells of a diseased body are acidic, below a pH of 7.0.