Are Urine Challenge Tests a Con?

Urine Challenge Tests I read an article on Quackwatch on Urine Challenge Tests where the author states that people are incorrectly told that they have high levels of mercury, lead or other heavy metals after doing Urine Challenge Tests (using a heavy metal chelator like DMPS) and that they should detoxify them. It is also stated that there is an issue with testing for heavy metals using urine challenge test because the results after provocation with DMPS are then compared to the unprovoked test reference ranges before the DMPS was taken to provoke … Continue reading