It's important for diabetics and repackaged for athletes. Whatever. It's just yet another modified gimmick diet that seems to work decently for athletes, but at the end of the day, it's a diet for diabetics. It's well known that people who aren't diabetics don't have a clear idea of how to use the glycemic scale: ie- you can eat turkey, which is high glycemic, but you can't eat white bread, which is low glycemic. However, if you eat a turkey sandwich with white bread, that sandwich is a high glycemic food. But for the person who doesn't know any better, they'll look at the glycemic index and x-nay on the bread, when actually, bread isn't such a bad thing. Again, this is a "for example".
If you're planning on using the glycemic index, get REAL educated on how to properly use it before you start assuming what foods are "good" and "bad".
Koffee