I'm questioning this too because yes different people chelate with different agents, and use different doses; and for sure, we're all individual and we absorb and eliminate mercury at our own rates. It would be nice to aim for a percentage but I can't see how this would be possible, especially with the general lack of studies available in this area. These figures also mean that a large fraction of my mercury should be gone. I'll tell you what, I don't feel it.