Trasnform in 28, and yes, as I stated over and over in the thread, the basis was low carb, high protein. I jumped both the fat and the protein up considerably in an attempt to stick with the foundation of their philosophy. Intermittent fasting was also an integral part. Green Tea, plant-based protein for the shakes, etc were supposedly key. In essence, it follows the thinking from some of these whacked scientists (some have been referenced in this thread) that the body doesn't REALLY need carbs.
For my own personal well being, I should have stuck with the advice of great simplists (that a word?) like our wonderful Dan John, and said "no, that just doesn't make sense", and not done it. However I had what I thought was compelling evidence from others I know and trust that it did in fact work for them. One being someone very similar to me in workout ethic, training goals, etc. The last challenge saw an alleged 100% success rate. This one MUCH lower, as there were a few of us who went in with an already high degree of fitness, and not a truckload of fat to lose. Of course now I am doing what I also should have done, again following Dan's advice, and asking more and better follow-up questions of those it supposedly worked for. With the exception of 1 person now (haven't had chance to really dig in with him yet), I see why it either worked, or (most cases) it may not actually have worked, but they THINK it worked... failed to get one of the 2 scans, inconsistency with who was doing calliper measurements, and a myriad of other important details. But they fit into clothes, lost weight, etc and saw that as success.