There is also a video on youtube which tries to explain that Miracle-Mineral-Supplement isn't as safe as its supporters claim.
Do yourself a favor and really critically examine the claims being made by Jim Humble and his supporters. Find some friends or relatives, anyone that knows a bit about Science and discuss this with them. Give them both sides of the argument and see what they say. Don't make this decision alone.
If you have any specific questions, feel free to post them here or contact me at mmsfraud at gmail dot com