Lean Body Mass
Lean Body Mass: definition
Your total body weight minus your fat mass. Includes muscle, bone, water, and organs. Tracking lean body mass helps you understand whether weight changes are from fat or muscle.
What Lean Body Mass means in practice
Your total body weight minus your fat mass. Includes muscle, bone, water, and organs. Tracking lean body mass helps you understand whether weight changes are from fat or muscle.
Use the definition as a starting point, then connect it to your programme, exercise selection, nutrition targets, or progress data.
Related Terms
Lean Body Mass: quick questions
What does Lean Body Mass mean?
Your total body weight minus your fat mass. Includes muscle, bone, water, and organs. Tracking lean body mass helps you understand whether weight changes are from fat or muscle.
Why does Lean Body Mass matter in fitness?
Understanding Lean Body Mass makes it easier to follow programmes, interpret coaching instructions, and make informed training or nutrition decisions.
Where can I learn more about Lean Body Mass?
Continue with the related concepts Body Fat Percentage, Recomp or browse the PT Tracker exercise, programme, and calculator libraries.
Ready to transform your training?
Track workouts, nutrition, and progress in one place. Start for free, then upgrade when the premium tools make sense for you.