This is the diet strategy I use that keeps me shredded to the bone:
http://www.warriordiet.com/
I made an accidental discovery on my own about 9 years ago when the job that I was working at at the time didn't afford me much time to eat during the day. I was eating the bulk of my calories after my shift was over at 11PM.
Over a period of about 6 months, I became ripped to the bone. The ironic thing about this is that because I had been into bodybuilding long before that period and had read lots of literature who's general consensus was that eating several (usually, 6) meals a day was necessary to keep the body from becoming protein deprived, despite the fact that I was actually getting results without losing any muscle mass, I continued to dogmatically scold myself for scheduling my eating around the job.
As I'm sure you can imagine, as soon as my employment circumstances changed, I went right back to eating the traditional bodybuilding way and the 6-pack that I had earned over the course of the job disappeared. But of course, it wasn't really a big concern because almost all conventional knowledge about bodybuilding insists that "in order to gain muscle, you're going to have to gain some fat along with it." It really was a case of just simply not trusting what my body was telling me.
But anyway, without getting off on a tangent, one of the other articles of reinforcement for me, (now as opposed to then), is the idea of intermittent fasting. The bible gives an enthusiastic two thumbs up for fasting, and that's the basic premise built into this diet strategy.
I've been in the bodybuilding scene for around 15 years now, and I've been through alot of trial-and-error and made plenty of mistakes, but this is the strategy that I've seen the best results from thus far.