Sugar in cereal

I just read David KESSLER's new book about overeating.

He talked about another way to realize how much sugar there is in a box of cereal.

I pulled a box of traditoinal All-Bran cereal off the shelf and did some math. The net result is that 102 of the 519 total grams of cereal in the box are sugar! For other cereals, he writes, it is more like 30% than the 20% in the case of All-Bran.