It seems like there's a human instinct to "pick teams" when it comes to carbohydrate and fat, akin to shirts/skins Democrat/Republican Xbox/Playstation etc.
My understanding: glucose fuel is well-suited for the brain and for running/lifting/jumping, and fat fuel is well-suited for sleeping, walking, typing, and everything else. My appetite and intake roughly correspond to those needs.
Lots of: urban hiking, cycling, sprinting
Lots of: fresh meat, seafood, eggs, organs, tubers, starch fruits, vegetables, meat fat, dairy fat, oil fruits
Some: cured meat, dairy protein, sweet fruits, rice, pulses, tree nuts, oil seeds
Minimal: soy, refined proteins, sugar, liquid carbohydrate, grains, refined oils, peanuts