The following gives the abundances of the elements in humans . Just enter your weight in either kilograms or pounds. In some browsers, after entering your weight you may have to click outside the text entry box to make the calculation work. Elements for which there are no data will always give a value of zero for the weight, no matter what you put in the weight box. Here are a few notes about the hazards and risks associated with selenium.
Selenium compounds are very toxic.
They are carcinogenic and teratogenic. This is because Astragalus concentrates selenium.