Below is my food strategy to maintain 8% body fat, energy and great mental clarity for a whole year-round. This is just one part of the puzzle, but very important. Others are having a correct circadian rhythm, good sleep, and the right amount of exercise at the right time. I follow the rules like 90% of the time. I'm also breaking these rules with peace in my mind. Consistency is important, but having fun in life too!
How to approach this document? You can just plug&play anything you want, or gain a simple inspiration. I would be stoked if it helps you anyhow to feel better.