So you don't have to spend an hour in the kitchen to enjoy the healthy, whole-grain benefits of brown rice.

CNN: Is quick brown rice as healthy as regular?

Although the food questionnaires used in the study did not ask about specific brands of cereals, popular brand-name cereals made from refined grains include varieties of Corn Flakes, Special K, and Rice Krispies, while examples of whole-grain cereals include Cheerios, shredded wheat, and bran.

CNN: Cereal may help ward off hypertension