Fast5/JUDDD/alternate-day diet/Eat Stop Eat/etc.
More and more research is being done on these diets, finding that intermittent fasting has some of the same effects as CR on longevity and cancer risk, and some of the same effects as low-carb diets on insulin resistance.
I'm on Fast5 now, and this is the first diet plan I've felt like I could stick with long-term. I have more energy when I'm fasting during the day (as long as I remember to stay active!), and my eating window (5-10 PM) falls during a time when most "social eating" (the main cause of me breaking other diets in the past) occurs anyway, so I don't cheat.
The insulin charts in the book make sense, but even without that, just limiting eating to five hours a day helps me to restrict calories. I do tend to eat larger portions than I should, and trying to curb that tendency in the past has been extremely difficult (trying to eat a small portion just wakes up my stomach and makes me hungry!), so not (over)eating three times a day means I can have the big portion I naturally want once a day without eating more than my daily calorie requirements.
...and instead of increasing my tendency to binge, it's decreased it -- I do still occasionally binge and do something like have an entire pizza for dinner (something I also did before the diet), but now when I do it spiking my blood sugar from "fasting" to "wow, look at all those carbs" makes me feel physically ill, and my brain is starting to associate eating badly with feeling bad and not want to do it any more. (Just smelling doughnuts is enough to make me queasy now... I'm starting to get cravings for fruit instead!)
I've only been on the diet for two weeks so far, but it's feeling like it's going to work out really well for me.
Is anybody else here doing some form of intermittent fasting diet? How has it gone for you?