provides a comprehensive look at the who,
what, when and how of Fiber
< b>Fiber: The parts of plants that cannot be digested, namely complex carbohydrates.
Also known as bulk or roughage.
Complex carbohydrates from plants are rich in starch and fiber. Examples of plants
that provide complex carbohydrates (fiber) are fresh fruits and vegetables, whole-grain
breads, and cereal grains. Simple carbohydrates, such as common table sugar, have
no fiber.
Dietary fiber can have many benefits including promoting bowel regularity, lowering
the level of cholesterol in the blood, and easing conditions such as hemorrhoids,
colitis, and diverticulosis. Dietary fiber can also aid in weight maintenance as
it requires more chewing and promotes hunger satisfaction by giving the stomach
a sense of fullness.
A salient benefit of dietary fiber was thought to be that it lowered the risk
of colon cancer. Then in 1999 it was reported that dietary fiber seemed to have
no effect on the chance of developing colon cancer. And in 2000 a kind of dietary
fiber was discovered to increase the risk of the adenomas, the forerunners of cancer
of the colon. The fiber under study was from ispaghula husk, which is not normally
found in the diet but is found in laxatives containing mucilage. Ispaghula husk
fiber is similar to psyllium, a fiber derived from plant husks that is found in
many bulk laxatives. It appears that a high-fiber diet should be avoided by anyone
who may have colorectal adenomas.
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