I've taken EDTA orally in large doses and noticed no effect at all. I've taken other heavy metal detox formulas that were expensive but more effective.
But inexpensive Bentonite clay has been VERY powerful and effective. I drink it and for the first time tonight took a footbath in the stuff. WOW!
Just have to make sure you drink lots of extra water so you don't get constipated - and it works like a pro. Also supposedly is the best thing for radiation which we're bathing in thanks to f***youshima.