31. He was subsequently treated with chelation therapy. 32. It has been used as a scientifically unsupported chelation treatment for heart disease and autism. 33. This rings alarm bells for me, ESPECIALLY if the person is recommending chelation therapy. 34. In a process called chelation , medication binds the lead so that it can be excreted. 35. The first rigorously controlled clinical trial found last year that chelation failed to relieve heart disease. 36. Patients now considering chelation should " wait for the results of this trial," 37. An interesting feature of orellanine is its ability to bind aluminium ions to form chelation complexes. 38. Your Chelation article suggests that heavy metal chelation is dangerous and unscientific when used for autism. 39. Your Chelation article suggests that heavy metal chelation is dangerous and unscientific when used for autism. 40. Although there are practitioners who advocate and practice chelation therapy, the successes they report are anecdotal.