Energy Expenditure energy intake energy homeostasis an effective and efficient healthy fuel burn. energy balance energy balance energy balance energy expenditure energy expenditure Energy intake energy balance energy expenditure total energy expenditure energy expenditure energy balance Energy Expenditure energy balance energy intake energy balance energy balance energy expenditure energy intake cân bằng năng lượng energy intake energy balance energy balance Energy Expenditure energy balance energy balance Energy balance energy intake energy Expenditure energy expenditure total energy expenditure energy expenditure energy expenditure Energy Expenditure energy expenditure energy balance energy intake Energy balance energy intake Energy Expenditure energy balance Energy intake Energy intake Energy Expenditure energy expenditure