Blond psyllium (Plantago ovata) is primarily used to support hemorrhoids due to its scientifically validated effects as a bulk-forming laxative. The mechanism involves increasing stool bulk and moisture content, which facilitates softer and easier bowel movements. Hard stools and straining during defecation are well-established risk factors for both the development and exacerbation of hemorrhoids. By relieving constipation and reducing straining, blond psyllium can help prevent irritation and worsening of hemorrhoidal symptoms.

Multiple clinical guidelines and randomized controlled trials support the use of fiber supplementation—specifically psyllium—for patients with hemorrhoids. For example, a double-blind study published in the British Journal of Surgery (1994) demonstrated that fiber supplementation reduced bleeding and pain in patients with hemorrhoids. Systematic reviews (e.g., Alonso-Coello et al., 2005, in Cochrane Database of Systematic Reviews) have found moderate-quality evidence that fiber improves overall symptoms and decreases the risk of persistent symptoms and bleeding. Psyllium is often recommended as a first-line intervention in major gastroenterological society guidelines for hemorrhoid management.

The evidence base is robust, though not all trials have been large or of optimal methodological quality. Nevertheless, the consistency of positive results, safety profile, and mechanistic rationale justify a strong evidence rating for the use of blond psyllium in supporting hemorrhoid management.