I switch up my fasting/eating schedule each week. Some weeks I’ll do three fasts, one 36 hour and two 24 hour. Some weeks (like this week) I’ll just complete two 36 hour fasts and some weeks I do one 48 hour. I let my social schedule dictate my fasting structure for any given week.
I like to complete at least one longer fast per month at 60-72 hours. I used to do even longer with a 96 hour minimum but have found this year that I just don’t want to do that anymore. Those super long fasts have gotten harder and I see plenty of benefit from a 60 hour fast, so I don’t bother.
On eating days I find that I’m most comfortable with two meals a day within a six hour window.
I’ve found that when I don’t consistently fast, my weight loss stalls out completely, despite a rigorous, clean ketogenic diet. That wasn’t the case when I started the way of eating but now it is.