… One way diet affects your health is through a process called “acid-alkaline balance.” The pH (potential of hydrogen) determines a substance’s acidity or alkalinity and is measured on a scale of 0 to 14. The lower the pH the more acidic the solution. The higher the pH the more alkaline (or base) the solution. When a solution is about in the middle of the range—neither acid nor alkaline—it has a neutral pH of 7.
The body regulates pH in very narrow ranges. In the different organs throughout the body, finely tuned physiological systems constantly work to keep the pH within specific ranges for optimal function. Stomach acid, which is important for healthy digestion and as a protection against potential infections, has a low pH, about 2-3. When the pH of your stomach cannot get low enough, it causes problems with digestion and can create acid reflux. Most people and medical approaches to acid reflux assume that there’s too much acid, when in fact the problem might to too little acid. Blood is kept at a neutral pH, between 7.35-7.45.
When your blood becomes too acidic, fine-tuned physiological mechanisms kick in to adjust the pH to a healthy level. One way it does this is by releasing calcium from bone. Over many years, this may contribute to developing osteoporosis.