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BDA Endorses First Evidence-Based Diet Guidelines for Chronic Constipation

A King’s College London team reviewed more than 75 trials using the GRADE framework to offer clinicians practical, symptom-focused options.

Overview

  • Recommendations highlight specific foods linked to improvement, including 2–3 kiwifruits daily for several weeks, rye bread, and high mineral-content water.
  • The guidance advises fiber supplements such as psyllium at more than 10 grams per day and magnesium oxide at 0.5–1.5 grams daily, with certain probiotic strains considered after at least four weeks.
  • Common advice such as generic high-fiber diets and the laxative senna is reported to lack strong evidence for treating chronic constipation.
  • The panel produced 59 recommendation statements and set 12 research priorities, alongside a clinician-friendly tool to support implementation in routine care.
  • Authors note that much of the evidence is low quality and largely single-intervention, calling for high-quality whole-diet trials and emphasizing personalized, symptom-led management.