ABSTRACT
If the intake of metabolic fuels is equivalent to energy expenditure, there is a state of energy balance. Overall there will be equal periods of fed state metabolism (during which nutrient reserves are accumulated as liver and muscle glycogen, adipose tissue triacylglycerols and labile protein stores), and fasting state metabolism, during which these reserves are utilized. Averaged out, certainly over several days, there will be no change in body weight or body composition.
