02-08-2010, 12:22 PM
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#76 (permalink)
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"Hermione-Lite"
Join Date: Oct 2008
Location: New York.
Posts: 3,084
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Quote:
Originally Posted by kayleigh.
Beans don't even make people fart, that's a myth.
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It's not a myth.
High fiber causes gas.
Beans are high in fiber.
Quote:
Why do beans cause gas?
Beans (legumes) cause gas because they contain a sugar, oligosaccharide, that the human body can not break down. Oligosaccharides are large molecules and are not broken down and absorbed by the lining of the small intestine as other sugars are. This is because the human body does not produce the enzyme that breaks down oligosaccharides.
Oligosaccharides make it all the way through the GI tract to the large intestine still intact. The bacteria that live in the small intestine break down the oligosaccharides. This produces the gas that must eventually come out of the rectum.
By the same principal, other foods that come into the large intestine without being properly absorbed in the small intestine will cause gas. Stress, for example, can cause food to move through the GI tract too quickly to be properly digested, with the end result being gas in the large intestine.
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http://ibdcrohns.about.com/od/otherd...es/f/beans.htm
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