2.0

Positives: there is at least some science (if tentative) behind this, and it feels intuitively right. What it does best is scare the hell out of anyone thinking if they have diabetes. That should inspire the diet. But, not for me for personal reasons, and I doubt for many in the long run. If weight creeps in easy after yo-yo diets, I can't see how blood sugar wouldn't, even more so. Anyway, got me interested in the 5:2 version.