"Many unconventional allergy tests are available which purport to diagnose a number of maladies. Tests range from electro dermal tests to trace metal estimation in hair samples. These un-validated tests are sometimes promoted by complementary and alternative medicine (CAM) practitioners. Superficially many of these tests sound plausible, but are based on unproven theories and explained with simplistic physiology. Most of these tests diagnose non-existent illnesses, are a waste of money, and divert attention from actual allergies thus delaying conventional treatments that offer genuine allergy relief.” Dr Adrian Morris, Allergy Clinician (2008)