RE: FITNESS: Diet and Exercise

From: gts (gts_2000@yahoo.com)
Date: Sat Apr 12 2003 - 17:54:37 MDT

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    Robert J. Bradbury wrote:

    > On Sat, 12 Apr 2003, gts wrote:
    >
    >> In itself flour is little more than sugar. It is broken down into
    >> sugar before it is absorbed by the gastrointestinal tract.
    >
    > Is this completely accurate? Is there an enzyme secreted in the
    > stomach or intestines that actually breaks the starch down into
    > individual glucose molecules?

    Yes, the enzyme is called amylase. This enzyme is present even in saliva. I
    know this from
    personal experience as well as from text-book theory: a couple of years ago
    I underwent some
    periodontal surgery which left my molars sensitive to sugar. I get the sugar
    signal from my
    molars when I chew thoroughly on a piece of bread.

    One might just as well eat candy.

    > Or would the starch molecules be taken up by the cells and broken down
    > internally?
    >
    > [Don't know -- mostly curious.]

    Not normally, at least not to any great extent. However such things might
    occur in certain intestinal disorders like Crohn's disease.

    -gts
    PS I'm replying onlist to you Robert because my offlist reply to you
    bounced.



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