Evidence supporting the use of: Fiber
For the body system: Rectum

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Table of Contents

Synopsis

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

Fiber is scientifically validated as supportive for the rectum and the broader lower gastrointestinal (GI) tract. Dietary fiber, especially insoluble fiber, increases stool bulk and softness, which facilitates easier and more regular bowel movements. This reduces the incidence of constipation, a major risk factor for rectal disorders such as hemorrhoids and anal fissures. Multiple randomized controlled trials and meta-analyses have shown that fiber supplementation significantly decreases the symptoms and frequency of hemorrhoids, which are swollen blood vessels in the rectal area. Additionally, fiber intake is associated with a reduced risk of developing colorectal diseases and is a foundational recommendation in clinical guidelines for managing both chronic constipation and prevention of recurrence of anal fissures.

The mechanism involves fiber's ability to absorb water and increase stool mass, thereby reducing straining during defecation and lowering pressure on the rectal veins. This, in turn, protects the rectal mucosa and supporting vasculature. Notably, organizations such as the American Gastroenterological Association and the National Institute for Health and Care Excellence (NICE) specifically recommend increased dietary fiber for rectal and anal health. Thus, there is robust scientific evidence, including mechanistic, clinical, and epidemiological data, supporting the use of fiber for supporting the rectum and related body systems.

More about fiber
More about Rectum

Products containing fiber

We currently have no products on Vitabase that contain this ingredient.