Paleo anyone ??

I do intermittent fasting, 20/4. Basically I only eat in a 4hr window at the end of the day. Intent is to be awake, burning calories, in a fasted state for the most time possible. First few days ghrelin really works against you, but as stated, if you are eating keto, high fat, high protein, minimal carbs, you will stay sated all day. There is no surge of energy with a crash, no post lunch lethargy, etc. I normally eat all of my calories/macros in two large meals between 1800-2200. I would just eat it in one meal, but often I'm totally stuffed after just 50%.

You're exactly right about the fasting... Once one has graduated in their eating disciplines, Fasting is a natural progression.
From 2012 to 2015 I was actively training/bodybuilding, and my diet would make most folks head spin like a top if I told them how/what I was eating. A head on collision that broke my left leg in two in 2015 wrecked that plan. Although I still train in maintenance mode. Training legs is really tough..
not to mention cardio.. I've had to scale back my diet several ways to keep from blowing out my gut. At 54, that's harder than it used to be. Give up? no way! 54 is a number, and I intend on keeping it that way.