Consider the process of eating and digestion. Everything we eat is broken down by stomach acid. The pH in our stomach is about 3 – very acidic, due to production of hydrochloric acid. Everything that is ejected from our stomach, into our intestines, is then immediately neutralized by digestive liquids and enzymes. Everything we eat and digest will end up at the same pH in our intestines. What this means is the initial pH of any thing we eat is completely irrelevant. So let’s dispose of a few myths right away – alkaline water? kangan water? coral calcium? All without scientific merit. Even if you manage to raise the pH of your stomach significantly (say, with antacids), eventually the stomach acids will restore the stomach pH to its regular levels. Nothing you eat or drink will have a significant effect on the pH of food once it reaches your intestine to be absorbed."
[Your Urine is Not a Window to Your Body: pH Balancing - A Failed Hypothesis])