+ 100!!!!!! Finally!!!! I was beginning to think I was all alone on that one!
When I first tried primal (I need to lose weight) by eating a diet of 60%-70% fat, it gave me explosive diarrhea (sorry TMI, i know!) to the point where I couldn't hold anything in for very long, so I suppose it could work on the basis of food straight in, food straight out.....lol! Personally I'd just prefer to go higher protein, moderate fats and lower-moderate carbs for the comfortability factor :-P