Random fact for today: Carbs are not the body's most preferred source of energy. fat is. Hence why you use it during times of rest and for aerobic capacity. I eat carbs only to that in which I require for working out and a few left over for a bit of brain function. Although I also rely on ketones for this.
The body is not 'designed' to run solely on carbs and a high carb intake can be correlated with a high blood triglycerides which can lower LDL particles and cause atherosclerosis.