There is no scientific evidence that live blood analysis is reliable or effective, and it has been described as a fraudulent means of convincing people that they are ill and should purchase dietary supplements.
[citation needed] Proponents claim that live blood analysis 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."
[4] Dark field microscopy is useful to enhance contrast in unstained samples, but live blood analysis is not proven to be useful for any of its claimed indications.
Two journal articles published in the alternative medical literature found that darkfield microscopy seemed unable to detect cancer, and that live blood analysis lacked reliability, reproducibility, and sensitivity and specificity.
[4] In 2002, an Australian naturopath was convicted and fined for falsely claiming that he could diagnose illness using live blood analysis[17] after the death of a patient.
A state medical board official said that live blood analysis has no discernible value, and that the public "should be very suspicious of any practitioner who offers this test.
"[2] In 2011, the UK General Medical Council suspended a doctor's licence to practise after he used live blood analysis to diagnose patients with Lyme disease.
"[21] One of these practitioners, Errol Denton, who practised out of a serviced office in Harley Street, was prosecuted in December 2013 under the Cancer Act 1939, and chose to use a Freeman on the Land defence.