I know it sounds crazy and maybe it's in my head but I'm really not anymore hungry now than I was before doing 20:4. My typical day before
5am Breakfast bar
6am Diet Mountain Dew
8am Water
11am Bruegers bagel or Subway 6" sub
3pm Snack
6pm Dinner
Now
6am-11am Coffee
11am-2pm Water
3:30 Large snack (Cheese and Nuts)
6pm Dinner
The truth is that 2 things kill me. Weekends and beer. I usually have 1 beer on Thursday, 3 or 4 on Friday, and 3 or 4 on Saturday. If the average beer I drink is 200 calories, that's 1,500+ calories. Then on the weekends we'll eat out for dinner at least one night and usually go crazy.
Drastically reducing your carb intake is why you aren't as hungry. I personally haven't had much in the way of carbs over a year now. No pizza, bread, donuts, buns, etc. If I drink, it is vodka and soda ( although do sneak an occasional beer).
I intermittent fast but nothing scheduled or heavily monitored. I just simply eat larger, fatty protein rich meals (much like our ancestors did) and I simply don't get hungry as often. I used to be a 3 meal a day....two snacks (plus) type of eater. Some times I'll eat just two meals a day now. I could probably do one sometimes....but just haven't been motivated enough yet to try.
Other benefits:
* lost all the weight I wanted to (30 lbs) and have kept off
* sleep better.....no longer need an alarm clock
* aches have gone away (bad knee from old FB injury)
* more energy, no afternoon energy drain