A pH number measures from 0 to14 how acidic or alkaline a liquid is — anything above 7 is alkaline and anything below 7 is acid. Water has a pH level of 7 — it’s neutral, meaning it has the same amount of acids and alkalis, which balance each other out.
The most critical measurement is in your blood. For optimal cellular health, your blood pH must be slightly alkaline with a pH between 7.365 and 7.45. Our bodies are designed to maintain this range at all times, since even the slightest dip or rise in pH can have seriously dangerous consequences.
Therefore, it is important to avoid the Standard American Diet (SAD) which is rife with acidic substances and foods—meat, dairy, highly processed food products and refined sugar.