Is alkaline water a myth?

Alkaline water is often marketed with claims that it can regulate the pH of your body. However, according to Andrew Huberman, the pH of your body and its cells is tightly regulated through homeostatic mechanisms that do not significantly change with the consumption of alkaline water. He states that the body has biological systems in place to maintain a consistent pH across different cells and tissues, making the consumption of alkaline water unnecessary for affecting body pH 1.

Dr. Huberman also mentions that while the pH of the water you drink is important (extremely acidic water isn't ideal for absorption), the notion that drinking alkaline water can make your body more alkaline is without scientific basis. Your body's pH is very tightly controlled, and altering it through diet or drinking water is not practically possible under normal healthy conditions 1.

In summary, the idea that alkaline water can regulate or significantly affect body pH is largely a myth.