Chelation treatments have two main functions. First, it is used to pull heavy metals out of the body. This applies for both current or past exposure. A urine test is first required to assess if high levels of metals are present, and which particular metals. IV treatments are then used to reduce the amount back to safe levels. Second, chelation is a powerful treatment for heart disease (atherosclerosis). It has been shown to be highly effective at improving blood flow, lowering blood pressure and reducing risk of heart attack and stroke. Sometimes 20 or more treatments are required.