Thank goodness it's not July, because watermelon is not on the low GI menu. In fact, at 80, its GI ranking is considered high. What a disappointment. Cantaloupe barely squeezes in at 75, but some of my other favorite fruits -- apples, pears and cherries -- fall into the "low" category, so I'll snack on those instead.

It's probably no surprise to anyone that most veggies are low on the glycemic index. Even carrots, with all their natural sugars, only rank a 16 when eaten raw, and sweet corn is a 47. I've got to stay away from pumpkin and parsnips, though, which, honestly, shouldn't be a problem.