Total body weight minus all body fat — includes muscle, bone, organs, water, and other non-fat tissue.
Lean Body Mass (LBM) is everything in your body that isn't fat: muscles, bones, organs, blood, water, and connective tissue.
LBM drives your basal metabolic rate — more lean mass = more calories burned at rest. Tracking LBM during weight loss ensures you're losing fat, not muscle.
A numerical value calculated from height and weight, used as a screening tool for body fat categories.
The number of calories your body burns at complete rest to maintain basic life functions.
The total number of calories burned per day, including exercise and daily activities on top of BMR.
The three main nutrients the body needs in large amounts: protein, carbohydrates, and fats.
The proportion of total body weight that is composed of fat tissue.
The force of blood pushing against artery walls, measured as systolic over diastolic pressure.