Chelation is the bonding together of a toxin, usually a metal, into another molecule. Nature has many compounds that chelate, but chelation therapy uses a chemical called ethylene-diamine-tetra-acetic acid . This is used to remove heavy metals and toxins from the bloodstream.

This compound, given by intravenous drip, is used in the orthodox world to bind with metals such as mercury and lead that may be ingested or inhaled unintentionally. Chelation therapy was first used in the 1940s to treat lead poisoning. Physicians also noted several decades ago that EDTA treatment was useful in opening up blood vessels, possibly by reducing the calcium deposits or plaques of arteriosclerosis .

Chelation therapy may be of benefit in removing industrial toxins that we take in through our food and from pollution. A session of the therapy takes about three hours, and is usually administered a few times a week over two or three months. Chelation therapy is now being used in combination with oxygen and high-dose vitamin therapy in fighting cancer. Treatment is only licensed to fully qualified medical practitioners because EDTA may be toxic, and specific amounts must be given depending upon certain kidney functions.