From ProductStat - breakfast cereals:
<strong style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline;">Bran is too rough for many</strong>
There are several reasons for avoiding the use of bran (the skin, husk, or hull of the grain) as a breakfast food. One is that bran has been clearly established as too harsh a roughage material for the intestinal tract of many persons. (One writer notes that this is especially true of those who are nervous or high strung in temperament.) Second, bran is relatively very high in atomic bomb fallout, Strontium 90; it contains seven times as much of this product of nuclear testing as does white flour. The use of whole wheat flour and whole wheat breakfast foods, and of bran as a breakfast food, can thus very substantially increase the intake of the inherently dangerous radioactive strontium."
<strong style="margin: 0px; padding: 0px; border: 0px; vertical-align: baseline;">Bran is too rough for many</strong>
There are several reasons for avoiding the use of bran (the skin, husk, or hull of the grain) as a breakfast food. One is that bran has been clearly established as too harsh a roughage material for the intestinal tract of many persons. (One writer notes that this is especially true of those who are nervous or high strung in temperament.) Second, bran is relatively very high in atomic bomb fallout, Strontium 90; it contains seven times as much of this product of nuclear testing as does white flour. The use of whole wheat flour and whole wheat breakfast foods, and of bran as a breakfast food, can thus very substantially increase the intake of the inherently dangerous radioactive strontium."