Thanks for your comments.
My main goal is to lose bodyfat (specifically 4 inches off my waist, to get from 40" waist to 36" waist) while keeping my performance up in the gym.
I've been holding steady at this body comp over the summer after losing 35 pounds from Jan. to May using a relatively severe hypocaloric diet. I don't want to do that again. Also, I've found that my body comp responds well to eating mainly protein and fat.
My main concern is the mental fogginess and sleepiness I tend to experience when eating low carb. Before, when I didn't know any better, I restricted the calories too much when beginning a low carb regimen, so I never really got too far into it. Now I know to eat higher calorie P+F meals, especially at the beginning to help the body adjust. But I still experience the fogginess/sleepiness.
I guess I was looking at the 12 day transition period as a way to kickstart fat-burning and to overcome the fogginess/sleepiness issue. I was then hoping to do carb cycling indefinitely until my body composition goals were complete. After that, my "lifestyle eating" will probably be P+C in the morning and early afternoon and P+F in the evening and night. So I don't see the AD in my future.
Bottomline: Based on what I've read, the fogginess/sleepiness issues will disappear when the body has converted to fat burning. Will this continue on a carb cycling diet?
Thanks for reading all this. I should mention I'm a law student and am very leery of reducing my ability to think and concentrate during waking hours. That is the main impetus for my question.