The ratio of muscle mass to fst mass is called

Body Fat Ratio. It is a new indicator of obesity. It is far more efficient that the Body mass index. The main reason for this is that BMI does not differentiate between muscle mass and fat mass and it also does not differentiate central obesity.

Body fat ratio has been exactly devised in order to root out all the fallacies associated with BMI. It is the current best obesity indicator available to us.

i'm pretty sure questions like these aren't allowd.   but, sure.   i can and talk : ))