According to Dr. Patrick Quillin, PhD, RD, CNS
in his book "Honey, Garlic & Vinegar", copyright 1996,
P.125, he states that the healthy adult body has a bloodstream pH of about 7.41, which is mildly alkaline.
On P.125-126 he goes on to state that there are many medical textbooks teaching doctors how to finely balance
the human body's pH-- "Deviations from the normal can create disease or death", and even slight changes
can lead to degenerative diseases like cancer and mental illness.
On P.125 he states that eating an acidic food, like vinegar (read also KT ) or lemon juice, creates an alkaline
environment in the body. The acid gets into the small intestines, where the pancreas detects acid in the gut, and
releases a bicarbonate buffer (alkaline) into the bloodstream.
Thus, I would summarize that KT does effect the blood's pH on the basic (alkaline) side.
P.S. Dr. Quillin is a nationally recognized expert on the subject of nutrition, has been a college
instructor, and a consultant to the U.S. Dept. of Agriculture.