I picked up the book Extreme Fat Smash Diet by Dr. Ian Smith for a friend and ended up reading it myself. I'm always looking to learn more and add new things to my repertoire. This diet works in 3 week cycles and they just rotate until you reach your goal weight. This diet isn't for long term use because the calories are too low. If you stay on this diet too long your body will eventually go into starvation mode and will start to break down muscle. My first week on this program is the hardest because a lot of foods are elimintaed, but you get used to it very quickly. I only consumed foods high in protein and fiber during this cycle. In the the second cycle I was allowed to eat healthy sugars, almonds, and other foods with low glycemic ratings. In the last cycle I was able to reintroduce more food options including bread, but all food must fit your macros. After the final week I had lost 15 pounds and was able to transtion into the maintence phase of this diet. I definitely would recommend this diet for short term dieters.