14
Evaluation
Energy Expenditure: Metabolic Rate
For most individuals without excess body fat, the components of
RMR are:
• ~20% skeletal muscle
• ~20% liver
• ~15% brain
• ~10% heart
• ~10% digestive system
• ~5% kidney
• ~5% fat
• ~15% remaining/residual
a
NEAT also contributes to variances in energ y expenditure.
b
Whole foods generally generate higher diet-induced thermogenesis than ultra-processed food.
Calculating Resting Metabolic Rate
Harris-Benedict Equation
• Male RMR = 88.362 + (13.397 weight in kg) + (4.799 height in cm)
− (5.677 age in years)
• Female RMR = 447.593 + (9.247 weight in kg) + (3.098 height in
cm) − (4.330 age in years)
Mifflin-St. Jeor Equation
• Male RMR = (10 weight in kg) + (6.25 height in cm) − (5 age in
years) + 5
• Female RMR = (10 weight in kg) + (6.25 height in cm) − (5 age
in years) − 161
