September 2026
Fibre is an important part of a healthy diet, but have you ever wondered whether more fibre is always better? For most people, fibre supports healthy digestion and regular bowel movements. However, increasing fibre too quickly — or eating a high-fibre diet when you have certain digestive conditions — can sometimes make symptoms worse.
What Is Dietary Fibre?
Dietary fibre is the part of plant foods that is not fully digested by the body. It is found naturally in:
- Fruits and vegetables
- Whole grains
- Oats and whole-wheat foods
- Dal, beans and pulses
- Nuts and seeds
- Flaxseed and chia seeds
Why Is Fibre Your Friend?
- It supports regular bowel movements — fibre adds bulk to stools, which is particularly useful for many people with constipation.
- It supports gut health — certain types of fibre are fermented by beneficial gut bacteria.
- It can help you feel fuller, which can be helpful when maintaining a healthy weight.
- It supports blood sugar control — soluble fibre can slow digestion and carbohydrate absorption.
- It can support heart health — soluble fibre contributes to maintaining healthy cholesterol levels as part of a balanced diet.
When Can Fibre Become a Problem?
Fibre isn't automatically beneficial for every digestive symptom. A sudden increase in fibre can cause bloating, gas, abdominal discomfort and changes in bowel movements. Increase fibre gradually and drink adequate fluids.
How Much Fibre Do You Need?
Fibre requirements vary according to age, sex, energy intake and individual health needs. For many adults, around 25–30 g of fibre per day is a useful general target, but your requirement may be different. The goal is not simply to consume as much fibre as possible — the right amount, from a variety of foods, is more important.
If you have persistent constipation, diarrhea, bloating, abdominal pain or a diagnosed gastrointestinal condition, speak with a gastroenterologist and clinical dietitian before making major changes to your diet.
GastroPlus Diet & Wellness — Nourishing health, enriching lives.
This article is general information and not a substitute for a consultation. Please speak to a doctor about your own symptoms.