Fibre

4 minute read  |  Produced: October 2014  |  Revised: July 2021

Key points:

  • Fibre is the indigestible part of plant foods.
  • Dietary fibre is important for our digestive health and regular bowel movements.
  • Fibre helps you feel fuller for longer, can improve cholesterol and blood sugar levels and reduce your risk of diseases, including bowel cancer.
  • Most Australian’s don’t consume enough fibre.
  • Eating a variety of plant foods will help you get enough fibre each day.
  • Increase your fibre intake slowly to avoid digestive upset and drinks lots of water.

In this factsheet:

What is fibre?

Fibre is the indigestible parts of plant foods, such as vegetables, fruits, grains, nuts, seeds and legumes. Fibre contributes to our digestive health, which can impact our immune system, mental health, disease risk and overall health in so many ways.

There are two different types of fibre which have different functions and health benefits.

Soluble fibre helps to slow the emptying process in our stomachs, which helps you feel fuller. It also helps to lower cholesterol and stabilise your blood glucose levels.

Soluble fibre is found in plant foods such as fruits, vegetables, oats, barley and legumes.

Insoluble fibre absorbs water to help soften the contents of our bowels and support regular bowel movements. It also helps us feel fuller and keeps the bowel environment healthy.

Insoluble fibre is found in wholegrain breads and cereals, nuts, seeds, wheat bran and the skin of fruit and vegetables.

Cinnamon, pear and date porridge.

Cinnamon, pear and date porridge recipe

Try this delicious breakfast, which includes high fibre wholegrains and fruit for a delicious low-GI breakfast to begin an energy-filled day!

What is resistant starch?

Resistant starch acts in a similar way to fibre. Resistant starch is not digested in the small intestine and instead proceeds to the large intestine where it ferments and can assist in the production of good bacteria to support bowel health.

Resistant starch is found in undercooked pasta, under ripe bananas, cooked and cooled potato and rice.

Why is fibre important?

Dietary fibre is important for our digestive health and regular bowel movements.

Fibre also helps you feel fuller for longer, can improve cholesterol and blood sugar levels and can assist in preventing some diseases such as diabetes, heart disease and bowel cancer.

  • Fibre is the part of plant foods your body can’t digest.
  • Plant foods include grains, fruits, vegetables, legumes, nuts and seeds.
  • There are two types of fibre: soluble fibre and insoluble fibre and resistant starch.
  • Dietary fibre is important for digestive health and may reduce your risk of disease.

Remember:

  • Fibre is the part of plant foods your body can’t digest.
  • Plant foods include grains, fruits, vegetables, legumes, nuts and seeds.
  • There are two types of fibre: soluble fibre and insoluble fibre and resistant starch.
  • Dietary fibre is important for digestive health and may reduce your risk of disease.

Beetroot, lentil and feta salad

Beetroot, lentil and feta salad recipe

A wholesome lunch or a side dish at a barbecue, this recipe is as versatile as it is fibre rich. Sweet beetroot, peppery rocket and creamy feta are a tasty accompaniment for the fibrous lentils. Give it a go – your microbiome (and tastebuds) will thank you!

How much fibre do I need?

Gender
(over 18 years)
Acceptable intake
Males30g per day
Females25g per day

Eating a variety of plant foods will help you get enough fibre each day.

This includes:

High fibre, wholemeal breads

Choosing wholegrain, wholemeal and/or high fibre varieties of grain-based foods like bread and pasta.

Oats are a wholegrain, which is high in fibre.

Enjoying a variety of wholegrains, such as rice, oats, quinoa, barley, millet, polenta and buckwheat.

Fruits and vegetables are appetising and delicious.

Eating two pieces of fruit and five servings of vegetables each day.

You can also boost your fibre intake with:

  • a sprinkle of bran or psyllium husk on cereal, muesli or yoghurt
  • a small handful of nuts and seeds as a snack
  • adding legumes to meals

Increase your fibre intake slowly to avoid digestive upset and drinks lots of water.

Remember:

  • Most Australian’s don’t consume enough fibre.
  • Eating a variety of plant foods will help you get enough fibre each day.
  • Increase your fibre intake slowly to avoid digestive upset and drinks lots of water.

Which foods are high in fibre?

FoodServing sizeFibre content
Wholemeal pasta1 cup7.9g
Carrot (unpeeled)1 cup6.9g
Kidney beans100g6.5g
Corn1 medium cob5.9g
Rolled oats1/2 cup4.5g
Wholemeal biscuit2 biscuits4.2g
Broccoli (unpeeled)1 cup3.8g
Lentils100g3.7g
Sweet potato (unpeeled)1 cup3.7g
Brown rice1 cup2.7g
Almond30g (25 almonds)3.0g
Dried apricot30g (5 dried apricots)2.5g
Wholegrain bread1 slice2.4g
Banana1 medium2.3g
Apple1 medium2.2g
Psyllium husk1 tablespoon2.2g
Popcorn (air popped)1 cup1.2g

Produced by Nutrition Australia Vic Division, October 2014. Reviewed July 2021.