"Low carb" foods
I think most of us are pretty well educated on this topic and this may not be "news". Nonetheless, I found this a good article for many of us who see these labels throughout the grocery store. What I found of particular interest was the "net carbs" labeling. Food manufacturers calculate this different so beware of those "low-carb" bars you're eating.
http://moneycentral.msn.com/content/SavingandDebt/P75551.asp