your diet really has no impact on your body ph levels.
I am pretty sure that is a false statement. As stated above I also assume the TS is referring to mercury levels, however I wanted to address this. Many people eat to stay in an alkaline state. Things like greens are important to the ph level of your body. Without getting too in depth what you eat can leave you in an acidic state which causes your body to work harder to keep your blood ph nuetral.