evidence: Results: The pH values for the tested beverages and bottled waters were found to be predominantly acidic. Ten out of the 14 beverages tested were acidic (pH<7), 2 municipal (or "tap") waters were neutral (pH=7) and 2 bottled waters were alkaline (pH>7). The majority of waters tested had a more acidic pH when tested in the lab than the value listed in their water quality reports. [...] Table I and Figure 1 show that most of the waters tested had an acidic pH. Compared with the most acidic non-water beverage (Coke®), which tested at a pH of 2.24, Ozarka Natural Spring Water® was the most acidic water, with a pH of 5.16. The following waters had a pH just below neutral (or pH=7): Nestlé PureLife® (6.24), Evian Natural Spring Water® (6.89), Fiji Water® (6.90) and Smartwater® (6.91). Both municipal (or public) water supplies (Houston and Pasadena) had a neutral pH, with Houston's being 7.29 and Pasadena's 7.58. The 2 commercially available alkaline bottled waters evaluated were Evamor® and Essentia®, either of which can be purchased online or in specialty grocery stores and guarantee an alkaline pH. Each of these, as evidenced in Table I, was found to have a pH above 7, with Evamor® testing at 8.78 and Essentia® at 10.38. Table II illustrates the type of filtration process by which each brand of bottled water is purified, along with the reported TDS.