YMMV. I have used keto to much success in the past, however I've found it impossible to stick with on a long term basis, even after giving it 6 months and really trying to make it work. My cravings for carbs was unbearable and made me miserable. My body seems to reject it now, as every time I try it I have a ravenous hunger for pasta, breads, chocolate. So it's not really a panacea for limiting hunger. Fat is more satiating yes, but it's also pretty joyless after a short while.

I find fasting to be more in tune with my life nowadays.