Multiple people that I know lost a bunch of weight and kept it off by getting away from carbs. However, one person I know followed this diet a bit too much or too long or probably both and now he just look emaciated and sick.
I think that just like any diet it is important to watch that you aren't getting too much of anything but I can relate to the fact that eating a pile of meat will at least make you feel full, longer. I wonder why that is... perhaps the stomach can't break it down as fast.
oh for sure. There is no fix all and I can't give any good reasons to use any system other than the one i used for myself. You may recall that early on I said that the "no carb" diet should only be used for a couple of months to accelerate weight loss and to get newbies those results that they need so badly for motivation to continue.
About the protein breaking down slower: It seems pretty elementary if you think about it without getting to sciency, it would take a lot longer for a stomach to break down meat than say a pile of corn. I have no factual basis for this but it was what I personally experienced.