While tumors appear to develop acidic pH, we have not yet found any
clinical data supporting claims that diet can change the pH balance in
the microenvironment of tumors, or, if it could, that doing so would
have a clinical effect on the disease.
"The unsubstantiated theory is based on lab studies that suggest
cancer cells thrive in an acidic (low pH) environment, but cannot
survive in alkaline (high pH) surroundings.
... While these findings are accurate, they apply only to cells in
an isolated lab setting. Altering the cell environment of the human
body to create a less-acidic, less-cancer-friendly environment is
"The bottom line is that the mechanisms controlling the pH of your blood
are incredibly robust and tightly regulated."
... In fact, if a patient receives an
intravenous bicarbonate infusion to alkalinize the urine, blood pH
will change little, unless you infuse a dangerously high amount."