[MattRix]

Fasting doesn't work for me except when I'm on keto, where it's no problem... though I should note I'm not talking about full day fasting, just "Intermittent Fasting". I will wake up, have a coffee+butter (~100 calories), and then not eat anything else until 2pm. Oh and I often run a 10-15km run before lunch and feel great during it, I think keto helps there too.

[DiThi]

I had similar experiences: When I'm on keto, I'm feeling hungry much less, and much less intensely. Sometimes I skipped lunch because I was focused on something and wasn't feeling like interrupting whatever I was doing. More importantly, I didn't feel super hungry a couple of hours after. I guess I was constantly in fat burning mode so my body didn't need to be switching gears.

I stopped keto after a few months reaching my target weight, and was irritable and unfocused for 2-3 days.