How do you measure body fat??
The digital scales pass an electric current from foot to foot and measure the impedance this varies with the amount of mussel fat in your body
Or there is a method that you are weighed and then weighed underwater (you hold your breath) and your volume measured.
From these measurements it can be calculated.
Or there is a skin fold test where the thickness of a fold of skin is measured at various parts of your body and a result calculated.
While these results may be an interesting distraction most of the time they would just be another way of suggesting that you need to lose weight.
Another method could be to render the body and collect the grease afterwards however the side effects of this method would be unacceptable to most people.
