^^ You dunno, indeed. Grape Nuts contains wheat flour, barley flour, salt and yeast. Period. Not exactly a load of crap. Cheerios comparable albeit with a small amount of sugar, and the preservative in Cheerios is in fact mixed tocopherols, also known as vitamin E. The problems arise with the dopey kid cereals (like Fruit Loops) where the sugar content goes way up and food colorings come into play.