The metabolic rate is the amount of energy expended by the body per unit of time. It can be divided into two main components: Basal Metabolic Rate (BMR) and the Total Daily Energy Expenditure (TDEE). BMR is the amount of energy required to maintain basic physiological functions such as breathing, circulation, and cell production while at rest. TDEE includes BMR plus the energy expended through physical activity and the thermic effect of food.
