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- GUT ISSUES Life Sciences SIG
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-
- We share many experiences with the kings of old:
- pastries, for instance, and home entertainment and
- vacation trips to far-off lands. Ancient-day common
- folk knew nothing of such things. Then again, they
- weren't constipated...
-
- We are. Not all of us, of course. But enough
- Canadians so that some doctors call our a
- constipated society. And even if you're not
- constipated, your present day diet may be leading
- you to more serious complaints like disorders of the
- large intestine or colon. These, too, were
- afflictions of of the upper classes of old. Why?
- Because in general the rich refined their food, along
- with their lives, and so stripped it of an odd but
- essential ingredient called dietary fibre.
-
- Like its fellow carbohydrates, the various types of
- dietary fibre are the product of sunlight, water and
- carbon dioxide combining in green plants. Most form
- part of plant cell walls. But unlike the other
- carbohydrates, fibres do not break down into sugars
- in the human digestive system and then course through
- the blood stream fueling muscles and nerves. Rather,
- when eaten they tumble intact through the stomach and
- small intestine and end up in the colon where
- billions of bacterial feed on them - in turn producing
- intestinal gas. No wonder, then, that dietary fibre
- has been unwelcome in many of history's nicer
- neighborhoods.
-
- Even 20th century doctors reasoned that since the
- bulky material provided not a single nutrient, it
- would only strain already troubled guts. Accordingly,
- they recommended low-fibre diets for patients
- suffering from hemorrhoids and other colon disorders
- often found in the West. But then, about 15 years ago,
- the prescription was reversed as researchers found
- that poor Africans, who eats lots of fibre, rarely
- suffer from such complaints. Fibre, the researchers
- learned, actually eases the bowel's burden by mixing
- with water and other food residues to create large,
-
- Soon, nutritionists came to see the low-fibre diet of
- most North Americans as a culprit in the onset of
- disorders ranging from tooth decay to heart attacks.
- Increasing the consumption of certain kinds of fibre,
- they found, could slow the body's absorption of
- sugars to which diabetics are sensitive, and of
- cholesterol, which may lead to heart disease.
-
- Furthermore, fibres fight obesity. They're filling,
- especially the pectins in citrus fruit and the gums
- in some beans. And they're mainly indigestible. So
- dieters eating lots of fibre are likely to eat less
- of other, more fattening foodstuffs.
-
- As for why populations on high-fibre diets seem to
- experience fewer colon cancers, no one knows for sure.
- In any case, there is no doubt that fibre is nature's
- laxative, the dietary key to regularity. Nutritionists
- therefore advise you to stay away from foods
- containing processed and refined ingredients such as
- bleached flour and white sugar. Remember that meats
- contain little fibre and that overcooked vegetables
- and fried foods have lost much of theirs.
-
- Nevertheless, fibre supplements are usually unnecessary.
- Merely ensure that your diet is full of fresh fruits
- and vegetables - and some of the most fibrous foods
- such as bran cereals, whole wheat breads, peas, beans
- and lentils - and you, too, can eat like an old-time
- pauper.
-