The human body maintains a slightly alkaline pH of between 7.35 and 7.45, which keeps the body functioning optimally. Some body systems have a different pH, including the stomach acids, vaginal flora, ...

The alkaline diet is based on the theory that food can regulate the body's pH, or acid-base balance. While certain foods leave behind acidic or alkaline residues, the body's kidneys and lungs tightly ...

The pH of blood refers to how acidic it is. Changes to blood pH can signal underlying medical issues, including metabolic acidosis, respiratory acidosis, metabolic alkalosis, and respiratory alkalosis ...