We're already used to an 8-hour fast (sleeping), so it's really not a huge lifestyle change. I don't do anything fancy with calories or macronutrients, anymore. I did when I was going to the gym more regularly, but it's really time-consuming measuring everything, so I just eat basically whatever. I do, however, try to limit my intake of processed foods and red meat.

If you regularly eat until midnight, you'll have to skip lunch as well.

[1] My figures are probably wrong. Someone feel free to correct me.

According to Jason Fung the sweet spot is 18 to 24 hours of fasting for fat loss and autophagy benefits. A 48hr fast shows better results for autophagy but the question of sustainable life style then emerges for the 48 hr schedule.

I fast for 20 hours everyday eating once in the evening. My anecdata confirms that it works for fat loss and improved morning concentration and better sleep.

I am small framed (68 kg), what they'd call at the gym "skinny fat". I'm in my mid-forties with noticeable fat around the abdomen. I have never been obese to be concerned about fat accumulation but I have vowed to never grow older AND fatter. :-) I've been doing IF as habit now with some success not only because of my work schedule primarily being in the morning but also because I have to dash out of the house for school runs after the emotionally exhausting work of herding cats out of bed (food in the throes of such trauma doesn't appeal to me). Also, I can get 6 hours of concentrated work done when I know I have no breakfast to think about before fetching the boys from school.

I have noticed accelerated loss of fat (I have fat calipers to measure) when I remove bread, pasta, rice and nuts for three consecutive days of the week.

For me, I simply eat one meal a day, it's really that simple. For me it's almost always dinner, but if I'm super hungry during the day I'll eat lunch and skip dinner.