well, I think the first person here is talking about a "live blood analysis", while the latter - about regular blood tests. I personally think the the live blood analysis is a big scam and was invented to sell supplements. I've read a few things about it, and I have enough of a Science background to seriously doubt that you can tell very much about the blood from a slide under a microscope, especially supposedly "see" candida or parasites, as many people claim they can. So I really wouldn't worry about if you feel good otherwise.