The Itinerary Of A Breakfast

The Itinerary Of A Breakfast

by John Harvey Kellogg


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Product Details

ISBN-13: 9781572583283
Publisher: TEACH Services, Inc.
Publication date: 04/23/2010
Pages: 218
Product dimensions: 5.20(w) x 8.20(h) x 0.50(d)

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THE DIGESTIVE TIME TABLE Now that the work of the several departments of the alimentary canal has been defined, we are better prepared to understand the rhythmical processes by which nature moves the foodstuffs along from one part to another until all the usable material has been absorbed, and then disposes of the unusable residue. Rhythmic Activity The work of the stomach is completed in three to five hours, at the end of which time it is found empty. The work of the small intestine, which begins within a few minutes after food is taken into the stomach, when the first small portions of liquid material begin to pass out through the pylorus, is finished at the end of eight or nine hours from the beginning of the meal. At the end of eight hours in a normal person, the indigestible and unusable remnants of the food are found in the first part of the colon. Tests made by means of carmine,swallowed in a capsule, show that in normal persons, discharge of the unusable residues of the meal begins seven to ten hours after the meal is taken and may be completed in twelve to fourteen hours. Rate Of Movement If the food can pass from the mouth to the colon, a distance of nearly twenty-five feet in eight hours, in the meantime undergoing the various complicated processes of gastric and intestinal digestion, there certainly seems to be no good reason why the food residue should not complete the transit of the colon, a distance only one-fifth as great, in one-half the time, or four hours, especially since the work done by the colon is almost exclusively mechanical, the work of digestion and absorption having been completed in the small intestine. There seems to be no reason why the unusableremnants of the food should remain for many hours, even days, in the colon, under...

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