Day 1: Oh Cheerios. My beloved breakfast -- a small bowl of Cheerios piled high with frozen blueberries -- is the first thing to go. With a glycemic index ranking of 74, they're out. I try blueberries on oatmeal instead. It's good, but it could use some sugar. Somehow, I suspect that would defeat the purpose.

In fact, while looking for some information on the glycemic load of Cheerios, I discovered that even after this week is over, I might want to make the switch to oatmeal a permanent one. Cheerios -- while being one of the healthier processed cereals out there -- is still less nutritious than oatmeal, a "whole" food.

Maybe I could get used to oatmeal and blueberries after all.