i do not know if your article applies to foot cleanse machines, advertised to sell? but i know some people who have done this at the health food store and they say, the results are as advertsed!
so i don't agree with your " finding" you say, were "investigated"? investigated by who, how many procedures and tests? what kinds?
there's a lot you reported, but these reports don't line up with the " reports of those i know personally, who have done this.