I've been following the IF diet for about 2 months now.
Lost 10 pounds, and have maintained or gained on core lifts (bench/squat/dead).
I follow the same plan RickRock does. 16 hour fast, 8 hour feed, but I basically stick to the same cals and macro breakdown every day.
I train AM fasted, (drink 30g BCAA spread evenly throughout my wake period, started as soon as I wake up).
So 6:50am, 10g bcaa, train 7:00-8:00.
9:00 am, 10g bcaa
11:00am, 10g bcaa
1:00pm, I drink a protein shake (25g), I'm still at work at this point and can't have a full meal, but this starts my feeding phase.
2:00pm, I eat around 1200 calories (eggs, broc, scoop of protein, PB, banana, oats, etc.) Then I head back to work.
I get home around 6:00pm and go for a 20 min jog (2 miles)
When I get back, the feast is on. I pound down another 1200 cals. I have a 3 meal rotation with the protein source being either lean beaf, lean turkey, or chicken breasts, to which I add some carb source, usually some lentils and a giant salad w/ broc.
Then I usually down about 50g of protein worth of greek yogurt and frozen berries. Protien and fiber, the sugar ain't that bad.
I usually round out around 250p, 200c, 50f.
It's been working for me great so far, I will probably have to get more strict as I get leaner.
I should also mention I don't follow this AT ALL on the weekends. I keep protein high but I booze my ass off
M-F basically. 6'3, 215 right now. Will probably need to get down to 205 to get my full 6 pack
There is a LOT to say about going to bed w/ a full belly. Sleep like a baby.