I noticed that some folks are trying to incorporate a daily "dose" of cinnamon in their diets. (I had pregnancy diabetes, so I am.) Had to rave about Vietnamese cinnamon. I just got some from penzey's spices ... WOW. Super strong, and it is so sweet, it tastes like there is sugar in it. (But there's not -- checked the label twice!)
Anyway, just thought I'd pass that on. It's miles away from grocery store cinnamon. If part of your diet includes some type of whole grain bread, you can sprinkle it on for instant cinnamon toast -- no sweetener needed. Great sprinkled in green tea, too.