I guess I wanted to start this thread up again and add my 2 cents. I just started IF and it has been killer for me. Not for compliance but for energy. I am on the zone and I had all the energy in the world. With IF (16-19hr fast, needing 15 blocks for the other 6) I had zero energy. I would break the fast at around 5:30 and eat until 10:30-11pm and then go to sleep. I would be ok if I was on a rest day but on workout days I had nothing in me.
FYI. I stayed in ZONE compliance while in my feeding window.
Any one else experience this?
Also, I feel kinda soft, like I am putting on the weight.