>> shown to eliminate lead and cadmium through the urine and has also been reported to reduce the toxic effects of aluminum.
This is why there is a lot of bound toxic Mag left inside the body. There usually is a homeopathic for this kind of stuff but Mag Met doesn't seem to be readily available. http://abchomeopathy.com/r.php/Mgmt
Mag Malate is best for ATP so protecting Mag with Malic Acid appears a valid way to supplement no matter what.