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Diverticular disease is when problems occur due to diverticulosis, a benign condition defined by the formation of pouches (diverticula) from weak spots in the wall of the large intestine. [1] This disease spectrum includes diverticulitis , symptomatic uncomplicated diverticular disease (SUDD), and segmental colitis associated with ...
While a low-fiber diet is generally used for acute diverticulitis, the NIH guidelines recommend a high-fiber diet for patients with diverticulosis (a condition that may lead to diverticulitis). [17] A Mayo Clinic review from 2011 showed that a high-fiber diet can prevent diverticular disease.
A 2011 review found that a high-fiber diet may prevent diverticular disease, and found no evidence for the superiority of low-fiber diets in treating diverticular disease. [33] A 2011 long-term study found that a vegetarian diet and high fiber intake were both associated with lower risks of hospital admission or death from diverticulitis. [34]
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CT scan showing extensive diverticulosis of the sigmoid colon Diverticular disease Whole slide of a transverse section of the left colon with diverticulosis. Diverticulosis is defined by the presence of multiple pouches (diverticula) in the colon. [22] In people without symptoms, these are usually found incidentally during other investigations.
Having said that, the exact relationship between fiber and having diverticula (with and without symptoms) is not very clear, but dietary fiber is associated with a decreased risk of symptomatic diverticular disease, and on the flip side a diet high in fatty foods and red meat is associated with an increased risk of symptomatic diverticular disease.