These body fat scales most stores sell, how do they function, and do they work? I have seen some claim that they pass an electrical current through you and measure which is fat and which is muscle, but wouldn’t you have to stick electrodes on you or something? Surely it can’t tell from just passing a miniscule current in the soles of your feet?
Ok, I admit, sounds like junk science to me off hand. Sort of like the Ionic Breeze or wearing a copper bracelet. I am willing to admit I am wrong, but I am curious as to what the Straightdope has to say about these things.
Work, not work? How? Scam or great product?