Essential elements are only healthy when within optimal ranges. Levels too low or high can negatively impact our health, so it's important to know if our levels are outside the ideal range. This profile offers the top four most toxic heavy metals and reveals levels of certain nutritional elements. Tests in this profile include Dried Urine: Iodine, Bromine, Lithium, Selenium, Arsenic, Cadmium, Mercury, Creatinine; and Blood Spot: Zinc, Copper, Magnesium, Cadmium, Mercury, Selenium.