At the end of the day it might look (numerically) as if they’ve satisfied their energy requirement, but they haven’t. So they’ve catabolized their tissue during the day, when you don’t have enough energy availability, your body thinks you’re in a fasting mode so you tend to break down more muscle than fat. You become excessively energy efficient, and now you’ve become fatter and fatter because you’re eating less. The standard 24 hour protocol for energy doesn’t work. It doesn’t work for your car and it certainly doesn’t work for us.
What you are looking at is two different measurements of protein synthesis in the human body. “Whole body protein synthesis” is a measurement of the protein synthesis happening in your entire body. This includes things like your liver, heart, lungs, brain GI Track and your muscles. This measurement does not tell you WHICH part of your body the protein synthesis is happening in, just that it is happening. “Muscle protein synthesis” is specifically measuring the amount of protein synthesis that is happening IN your skeletal muscle.