Tess,

My body lets me know if my day before was too high in carbs. I wake up ravenously hungry. If I did my RM properyly, I do not wake up hungry.

Maybe you can watch for signals like that. I would suggest you keep your cereal really high in fiber. Something like Shredded Wheat, which is a whole grain product with no sugar added is very high in fiber. One cup of Post shredded mini-wheats had 6g of fiber. It is higher in carbs than your Special K, but the special K has 1 g of fiber and 10g of sugar. Just something to think about.