to the editor: Sometimes a trip to the grocery store can be very informative. Because constipation is a prevalent problem in elderly persons and insoluble fiber is an important treatment, an examination of fiber-containing breakfast cereals is enlightening. Deciding which breakfast cereal to use in the treatment of constipation can be difficult considering the names of cereals, such as 100% Bran, All-Bran and Complete Wheat Bran. The fine print on the box reveals that 100% Bran contains only 7 g of insoluble fiber per 29 g serving—a disappointing 24.1 percent insoluble fiber for a product that claims to be 100 percent bran.
Several other breakfast cereals contain nearly double the amount of fiber that is found in 100% Bran (see the accompanying table).
|Cereal||Total fiber per serving (g)||Insoluble fiber (%)||Serving size (g)||Serving (volume)||Insoluble fiber (g)|
|Fiber One, General Mills||13||40.0||30||1/2 cup||12|
|All-Bran, Kellogg's||10||29.0||31||1/2 cup||9|
|100% Bran, Post||8||24.1||29||1/3 cup||7|
|Bran Flakes, Post||5||≤13.3||30||3/4 cup||4|
|Raisin Bran, Kellogg's||8||≤13.1||61||1 cup||*|
|Complete Wheat Bran, Kellogg's||5||13.8||29||3/4 cup||4|
|Shredded Wheat, Post||5||10.9||46||2 biscuits||5|
|Grape-nuts, Post||5||≤8.6||58||1/2 cup||*|