Its not quite as simple as that...but those are the serious quantitative chelators. Its dangerous, though, and you need to know what you are doing and be in tune to your body, drink LOTs of water, take anti-oxidants and herbs, etc., to support your body before and after and replace what may be lost in the process. (Zinc, etc.) I haven't done it in a long time myself. I was on the adult metal chelation that, I think, Andy started after he opened up the one to help parents with their kids. He is a chemical engineer. He's a good guy. I called him back when I learned about this before buying his book and we've emailed a lot in the past. He was still toxic a few years ago, but really understands the mechanisms of how it all works and, I know, some people really have gotten better on it. To me its the safest most deliberate method out there. People have added to it over time... I'm sure as has he.