What happens is that the metals form a cluster inside the body which thus needs to be removed and the process that comes to rescue is chelation. Chelates are put in the body in the required body and they come out with the metals. Also, the function of these chemicals is to clear the wall of cholesterol that forms inside the veins once the obesity inside the body reaches a certain amount.
The commonly used chelating agent is EDTA. It is believed to capture metals that no one can. It has also seen to get bound with the rare metals. Oral chelation is a process in which the chelating agent is sent inside the body via oral intake. Many people who are not comfortable with the tablets may even use sprays for the same. It is also believed to help in the cases of autism, a severe case of psyche pertaining problems, in general terms we call it as dual personality disorders.
The metals that the chelates commonly capture in the human body are lead, arsenic, etc. Clearing up the veins in order to make the passage of blood flow is the process for the treatment of atherosclerosis. In spite of many people giving affirmative for the treatment, there is not 100% support this process of treatment has achieved.