If you're not familiar with it, an excellent introduction - written by a real scientist - appeared in the Guardian a few years back. Here's a quick a summary.
"The principle of LBA is fairly simple: a drop of blood is taken from your fingertip, put on a glass plate and viewed via a microscope on a video screen.... Proponents believe that the method provides information 'about the state of the immune system, possible vitamin deficiencies, amount of toxicity, pH and mineral imbalance, areas of concern and weaknesses; fungus and yeast", as another website puts it..."
Despite its popularity, there's not a jot of evidence that LBA can diagnose anything at all. In one fascinating test (published in German), a professional Live Blood analyst was challenged to spot which of a set of blood samples had been gathered from cancer patients - and failed miserably.
Like many other quacks, LBA practitioners employ bait and switch sales tactics. The test itself is inexpensive (or free), but you'll pay through the nose for the "cure".
"The bulk of [the] money is made... by selling expensive nutritional supplements to the patient with the promise that these will correct whatever abnormality has been diagnosed... In other words, patients are potentially cheated three times over. First, you are diagnosed with a 'condition' you don't have; then a lengthy and expensive treatment ensues; and finally the bogus test is repeated and you are declared 'improved' or 'back to normal'." [Source]
And with that, it's time to introduce our titular quack. Meet Errol Denton!
"RACIST bloggers why do you lie so much? Why do you pretend that your RACIST attitude is not true? These are your expected responses you filthy RACIST COCKROACHES lowest vermin on the earth. Sociopathic RACIST Bloggers you can be read like a book... You are RACIST, RACIST, RACIST SCUM... RACIST blogger bitch you have certainly past [sic] your prime. RACIST, RACIST BITCH YOU ARE LOWER THAN A COCKROACHES' [sic] BELLY. RACIST coward scum never start what you cannot finish. Playing with fire gets RACISTS [sic] thugs burned with the truth." [Denton, 'KKK RACIST Bloggers Are Lower Than A Cockroaches' [sic] Belly', 10 Nov]
Most bizarrely of all, Denton recently put up a petition calling for the "Sociopath RACIST RACIST [etc]" bloggers to be held to account. Before being removed, the petition had attracted an impressive 36 signatures, among them noted anti-racism campaigners such as, errr... Adolf Hitler and Benito Mussolini!
Are the accusations fair? Are Jones and Brodie motivated not by an altruistic search for truth, but by racial prejudice?
Let's use science to find out!
Totting up these figures reveals that, of 107 identifiable individuals who are criticised on Jones' blog, 83% are white, 12% are of unknown race, 3% are black and 2% are Asian. (The list includes every named person I could track down, but omits several companies whose owners can't easily be found.)
3. The authors of the "Jo Brodie" and "Josephine Jones" blogs are both fully-qualified scientists, unlike Errol Denton (and me).