Most men eat enough protein throughout the day to last overnight. Just how much muscle mass would one lose in their sleep at night? Really, I am being serious. Is it even measurable? I find this information limited. As long as one gets enough nutrition through the day their muscles will be fed.
Well...I do it this way. I get my 200-225 grams of protein in before 6 as well as my carbs (low) and fats. My last meal always has Casein in it so it circulates for up to 8 hours in the body. True, at the end of the day the deficit is what matters. But I have such a slow metabolism that the nighttime fasting period is essential for me.