Chelation is the only effective way of clearing the body of heavy metals. It's very simple to prove it to yourself; go to a doctor who does chelation, have him/her actually TEST you for heavy metals before and after treatment.
You could be tested, then use supplements claiming to rid the body of heavy metals, then be tested again to see if they are effective. But don't count on anything but chelation as a proven method of removing heavy metals. And as testing is simple, you may be pleased to find out you don't have anything.
I believe a lab called something like "great smoky mountains" lab does heavy metal testing on hair samples without a doctr's ok. If you can't find it, just google heavy metal test. That's how I found it.