Gdawson, you have to read Andy's comments on this study.

It works like this:

They took mercury poisoned animal kidney tissue and treated them with ALA, DMSA, DMPS etc.. It was found that ALA did not remove a significant amount of mercury from it.

The problem is that when a living organism takes ALA it is converted to DHLA and this is the actual chelating agent.

The kidneys were dead so they could not do the conversion....