I'm going to answer your first question with a question: what do you think he means by "nasty crash"? Because I guarantee it's not what happens post-excursion.

I'm going to answer your first question with a question: what do you think he means by "nasty crash"? Because I guarantee it's not what happens post-excursion. There's no difference -- postprandial excursions are a diabetic phenomenon, and have nothing to do with what non-diabetic individuals think of as the effect of sugar and fiber on their health and mood.