I dunno, but I think most of the major brand cereals have a bunch of health no-no's in them. Next time I'm in the supermarket I'll actually read the ingredients to be sure. When I think of Grape Nuts or Cheerios, I think Froot Loops would be just as good/bad.
Cereal - I always go for the "natural, organic" crap. Oddly enough, they cost about the same. But not as colorful or tasty as Froot Loops..