I am 22 year old fit and active male with a high insulin sensitivity, great muscle tone, and a low body fat percentage (sub 8% year round). I have been "paleo" since I was 14, but when I started out I ate a lot of carbs from root vegetables, very low fat low fat (sub 20%), and medium protein. In my early 20s I moved to a high fat, low carb, moderate protein diet b/c I was hearing how carbs were so terrible and how fat was so good. So, the natural perfectionist in me decided to give VLC a try. My life took a turn for the wrose within the a month. I started having panic attacks, I couldn't concentrate for extended periods of time, and I had to drop out of light weight crew b/c my performance had rapidly began regressing. I stuck it out and became borderline hypochondriac for about another 6 months, and then got sent to the ER because my weight had dropped so low and my internal organs were causing pain when I would run b/c there was nothing protecting them. I just lost a little fat and a lot of muscle, but since I already had virtually no body fat to begin with I was horribly unhealthy. Oh, my libido sucked for the first time in my life too, which, when your 20, means something's wrong
After that nightmare I one day ate a yam at lunch and felt amazing energy that afternoon with a drastically improved mood. I did the following the next day, and kept increasing my root vegetable consumption again until I was eating starch or fruit at every meal. My health quickly returned- mood, libido, focus, strength, sense of humor, everything. I gained about 20lbs of muscle that I had lost, and I maintain a six pack effortlessly and defined muscles. It seems to me that high carb is the only way to go if you want to be mentally (like a student) and physically (like an athlete) active. I will never go low carb again and I feel badly for people who think that it is the only way paleo can be. Maybe if you were obese and eating SAD, then maybe, just maybe eating VLC paleo makes an improvemnt in your health. But I say maybe with great hesitation. I think that it is trendy to be VLC and even more so to be VLC paleo. So, I sometimes wonder if people just like the label and have a great deal of suspension of disbelief to persist in their VLC, high fat way

