Allison - I've tried IF. It didn't help me a bit. I was doing 2-3 days a week super low with a 24 cycle of no food, the other days as normal. Didn't do anything but make me grouchy.
Jay - I'n beginning to agree with that.
Welcome, Jessica! The trail mix will kill you, man. BTDT myself.
Becky - I wish I could give your friend some of mine.