Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Polydextrose is a synthetic polymer of glucose that acts as a soluble fiber and is commonly used as a food additive. Its primary function is to increase dietary fiber content in various processed foods. There is some scientific rationale for the use of increased fiber in the management of diverticular disease, particularly for preventing recurrence of diverticulitis and reducing symptoms in people with uncomplicated diverticulosis. Soluble fibers like polydextrose may contribute to stool bulk, improve bowel regularity, and potentially reduce intracolonic pressure, which is believed to be beneficial for individuals with diverticular disease.

However, the direct evidence specifically supporting polydextrose for the treatment or prevention of diverticulitis is limited. Most clinical guidelines and studies focus on increasing total dietary fiber intake rather than on polydextrose specifically. Some small studies have shown that polydextrose can improve bowel habits and stool consistency in general populations, but robust, large-scale studies in diverticulitis patients are lacking.

In summary, while there is a scientific basis for recommending increased fiber—including soluble fibers like polydextrose—in the dietary management of diverticular disease, the evidence supporting polydextrose itself for diverticulitis is weak and indirect. Its use is extrapolated from general fiber recommendations rather than from direct evidence.

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