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Dietary Fibre: Benefits, Sources, Daily Needs & Health Impact

Dietary fibre is the indigestible part of plant foods that plays a crucial role in digestive health, heart health, blood sugar control, and weight management. Although it is not digested or absorbed, fibre supports the gut, feeds beneficial bacteria, and prevents several chronic diseases.

 What Is Dietary Fibre?

Dietary fibre passes through the digestive system largely unchanged. Its benefits come from:

• Improving bowel movement

• Supporting healthy gut bacteria

• Slowing sugar absorption

• Reducing cholesterol levels

 Types of Dietary Fibre

1️⃣ Soluble Fibre

• Dissolves in water to form a gel

• Slows digestion and nutrient absorption

Benefits

• Lowers cholesterol

• Controls blood sugar

• Improves gut bacteria

Sources

• Oats

• Barley

• Fruits (apple, citrus)

• Psyllium husk

• Legumes

2️⃣ Insoluble Fibre

• Does not dissolve in water

• Adds bulk to stool

Benefits

• Prevents constipation

• Improves bowel regularity

• Reduces risk of hemorrhoids

Sources

• Whole wheat

• Bran

• Vegetables

• Nuts and seeds

• Brown rice

 Both types are essential for optimal health.

 Daily Fibre Requirement

Group

Recommended Intake

Adult men

30–38 g/day

Adult women

25–30 g/day

Children

Age + 5 g/day

Elderly

25–30 g/day

Most people consume less than half of the recommended intake.

🌱 Health Benefits of Fibre

 Digestive Health

• Prevents constipation

• Reduces bloating

• Improves stool consistency

• Lowers risk of diverticular disease

 Gut Microbiome Support

• Acts as prebiotic

• Feeds beneficial gut bacteria

• Improves gut–brain axis

 Heart Health

• Lowers LDL cholesterol

• Reduces risk of heart disease

• Helps control blood pressure

 Blood Sugar Control

• Slows glucose absorption

• Improves insulin sensitivity

• Helpful in diabetes & prediabetes

 Weight Management

• Promotes fullness

• Reduces overeating

• Supports healthy metabolism

 Low Fibre Intake Can Cause

• Constipation

• Piles (hemorrhoids)

• Poor gut health

• High cholesterol

• Blood sugar fluctuations

• Increased risk of colon cancer

 High-Fibre Foods

Food

Fibre (approx.)

Oats

10 g/100 g

Chickpeas

7–8 g

Lentils

8–9 g

Apple (with skin)

4 g

Pear

5–6 g

Broccoli

2.6 g

Chia seeds

34 g

Flax seeds

27 g

Whole wheat

12 g

 How to Increase Fibre Safely

• Increase fibre gradually

• Drink plenty of water

• Include fruits with skin

• Choose whole grains over refined grains

• Add seeds and legumes to meals

 Sudden high fibre intake without water can cause bloating.

 Fibre Supplements

Used when diet alone is insufficient:

• Psyllium husk

• Methylcellulose

• Inulin

 Supplements should not replace natural food sources.

 Who Needs Special Fibre Advice?

• IBS patients

• Inflammatory bowel disease

• Post-surgery patients

• Chronic kidney disease

• Severe bloating or gas symptoms

Consult a healthcare provider before major dietary changes.

 When to Consult a Doctor

• Persistent constipation or diarrhea
  
  

• Severe bloating
  
  

• Blood in stools
  
  

• Known gut disorders

Disclaimer:

The information provided on this website is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified physician or other licensed healthcare provider with any questions you may have regarding a medical condition. Do not ignore or delay seeking medical advice because of information you read on this website. The use of any information provided here is solely at your own risk.