Diverticulosis and Diverticulitis (cont.)
Diverticulosis is thought to be caused by increased pressure on the intestinal wall from inside the intestine.
- As the body ages, the outer layer of the intestinal wall thickens. This causes the open space inside the intestine to narrow. Stool (feces) moves more slowly through the colon, increasing the pressure.
- Hard stools, such as those produced by a diet low in fiber or slower stool "transit time" through the colon can further increase
- Frequent, repeated straining during bowel movements also increases the pressure and contributes to
the formation of diverticula.
Diverticulosis in developed countries is blamed largely on a diet low in fiber.
- Fiber is found in fruits and vegetables, whole grains, and legumes (dried beans, peas, and lentils).
- There are two types of fiber, soluble (dissolves in water) and insoluble.
- Soluble fiber forms a soft gel-like substance in the digestive tract.
- Insoluble fiber passes through the digestive tract nearly unchanged.
- Both are necessary to keep stool soft and moving easily through the digestive tract,
which helps prevent constipation.
- This is how fiber prevents constipation.
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