unrelated but maybe interesting...

I had a colonoscopy and had to empty my system.

I had 1/2 gallon of this fluid to drink the night before, and the other 1/2 gallon to drink the day of. At that point my digestive system was empty.

I will say with an empty system I felt energized and a lot more clearheaded.

I wonder if doing this from time to time is helpful to your system, and furthermore if eating smaller portions would be helpful to my energy levels.