Lean body mass (LBM), sometimes confused with fat-free mass… ….is a component of body composition. Body fat weight is subtracted from total body weight to determine… …fat free mass (FFM): total body weight is lean plus fat. For a start, let’s hear an inspirational story below… A person walks into a gym and sees someone … Continue reading LBM Calculator: What Is A Good Lean Body Mass? – Ultimate Guide For You (2021)