Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Fiber blends, typically containing soluble and insoluble fibers such as psyllium husk, methylcellulose, or wheat dextrin, are commonly recommended as part of the conservative management for anal fissure and, to a lesser extent, for anal fistula. The primary rationale is to soften stool and promote regular, non-straining bowel movements, which can reduce trauma to the anal mucosa and allow fissures to heal. The scientific evidence for fiber supplementation in anal fissure is moderately strong; multiple randomized controlled trials and clinical guidelines (e.g., American Society of Colon and Rectal Surgeons) endorse dietary fiber as a first-line treatment for acute and chronic anal fissures. Studies show that fiber intake can reduce pain during defecation, increase healing rates, and decrease recurrence. For anal fistula, however, the evidence is less robust. While fiber is not a direct treatment for fistula, it is often recommended to minimize constipation and straining, which may help prevent further irritation or worsening of symptoms, but it does not address the underlying tract or infection. Overall, fiber blends are justified for symptom management in anal fissure and for supportive care in anal fistula, but they are not curative for the latter. The evidence rating is 3, reflecting moderate support from clinical trials and guidelines, primarily for fissures.

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Nature's Sunshine Power Greens To-Go