A Answers (1)
National Academy of Sports Medicine answeredLean body mass (fat free mass) should make up the majority of your body weight. Typically, the focus is on making sure you do not have too much fat mass. Women should have less than 30% fat mass, so their lean body mass should make up at least 70% of their body weight. Men should be less than 25% fat mass and have at least 75% lean body mass.