Dietary Fibre
Dietary fibre is the indigestible part of plant foods that promotes fullness, supports gut health, and aids weight management.
Plain English
Patient-Friendly Explanation
Dietary fibre is the part of plant foods that your body cannot digest — found in fruits, vegetables, whole grains, beans, and nuts. Fibre helps you feel full for longer, slows down digestion, feeds healthy gut bacteria, and keeps your bowel movements regular. A high-fibre diet is one of the simplest and most effective ways to support weight loss and overall health.
Medical
Clinical Definition
Dietary fibre comprises non-digestible carbohydrates and lignin intrinsic to plants. It is categorised as soluble (forming a viscous gel — e.g., beta-glucans, pectins, psyllium) which slows gastric emptying, reduces postprandial glycaemic response, and lowers LDL cholesterol; and insoluble (e.g., cellulose, hemicellulose) which increases faecal bulk and accelerates colonic transit. The recommended daily intake is 25 g for women and 30 g for men. Meta-analyses demonstrate that each 10 g/day increase in fibre intake is associated with a 0.8 kg reduction in body weight, primarily through increased satiety, reduced energy density of meals, and favourable modulation of the gut microbiome.
Key Insight
Why It Matters
Most Singaporeans consume well below the recommended daily fibre intake. Dr Joseph Wang at Accord Medical emphasises dietary fibre as a foundational nutrition strategy in his weight management programme — it is safe, evidence-based, and effective without medication.
Sources
Reviewed against standard medical references.
Medically reviewed by
Family Physician & Registered Acupuncturist, Accord Medical Clinic. MBBS (NUS), Graduate Diploma in Family Medicine (NUS), Graduate Diploma in Acupuncture (Singapore College of TCM).
Last reviewed: August 2026
This page is general health education, not medical advice. Whether any treatment is appropriate for you is a decision made in consultation after assessment.
