Hi, Thanks for replying. I know that people should test PH at least two hours after eating, in the case of my brother I took what I could get because it took me two weeks to have him test it at all. However, I read that saliva PH does not vary that much, and that seems to be true with me. So, even if his PH is within a point or so of 7.5, isn't that too good for someone with Cancer (it's a Sarcoma if that makes a difference)? I have been researching as much as I can before he starts Chemo as I don't like that they don't have definate evidence that there is cancer left in his body and I also don't like that they will not be able to tell if his cancer is improving since they can't say for sure if there is any left in him or not. Any additional info or insight much appreciated! This is all new for me.