Fibre & fluid for healthy bowels
Kaka me wē mō ngā terotero hauora
Fibre helps to prevent constipation and keeps your bowels regular and healthy. Fibre comes from plant foods such as fruit, vegetables, breads, cereals, nuts and seeds.
Here are some tips to prevent and help with constipation.
Every day have at least 6 servings of grain foods
Choose mostly wholegrain and those naturally high in fibre. For example, brown rice, wholegrain bread and porridge made with whole or rolled oats.
A serving is about the size of your closed fist.
Every day have at least 5 servings of vegetables and 2 servings of fruit
A serving is about a handful.
Drink at least 8 cups of fluid daily
- You might need to drink more during hot weather and during or after physical activity.
- Try to make at least half of your fluid intake water. Milk, fruit juice, hot drinks, soup, jelly, custard and ice blocks also count as fluids.
- Check your urine to see if you are drinking enough. Your urine should be clear or a pale lemon colour.
- See How to get enough to drink.
Tips to get more fibre
You may need more fibre to help your bowels move. To avoid getting stomach pains or bloating, it is best to increase your fibre intake gradually. Also make sure you drink plenty of fluids. Choose 1 or 2 tips at a time from the following list.
- Start the day with a high-fibre breakfast cereal. Try Weet-Bix, bran-based or oat-based cereals or porridge. Add fresh, canned or stewed fruit to your cereal.
- Choose wholemeal or wholegrain breads.
- Have wholegrain crackers or wholemeal bread instead of biscuits.
- Check food labels for fibre content. Read the nutrition information panel on food packets and choose foods with at least 5 g of fibre per 100 g of food.
- Use wholemeal flour and rolled oats in baking and cooking.
- Add extra vegetables to soups and stews.
- Add lentils, split peas or chickpeas to soups and casseroles.
- Add raw or roasted nuts and seeds to salads, breakfast cereal and stir-fries to add some crunch.
- Try baked beans or a salad made from canned mixed beans.
- Leave skins on fruits and vegetables. Wash them well first.
- Try brown rice and wholemeal pasta.
- Try quinoa (a grain) in place of rice or add to salads and stir-fries.
- Choose high-fibre snacks such as a small handful (30 g) of raw or roasted nuts without added fat, hummus on wholegrain crackers or fresh fruit. Kiwifruit are particularly helpful for constipation.
If you need more fibre to help your bowels move, ask your general practice team for advice on a fibre supplement.
Written by HealthInfo clinical advisers. Last reviewed August 2024.
Sources
The information in this section comes from the following sources, some of which may be clinically complex or not available to the general public
Australian Prescriber – Managing constipation in adults (https://www.nps.org.au/australian-prescriber/articles/managing-constipation-in-adults), retrieved June 2017.
Ministry of Health – Eating and Activity Guidelines for New Zealand Adults (https://www.health.govt.nz/system/files/documents/publications/eating-activity-guidelines-for-new-zealand-adults-oct15_0.pdf), retrieved September 2018.
World Gastroenterology Organisation – Constipation: A global perspective, retrieved June 2017.
Image and embedded video sources
Illustration of how to site on a toilet from Shutterstock (image ID 656062777). August 2021.
Image of a glass of water with a fibre supplement from Shutterstock (image ID 1554653579). October 2020.
Image of a man on the toilet from Shutterstock (image ID 308322293). June 2017.
Image of blueberries and bananas on bran from Shutterstock (image ID 191953970). October 2020.
Image of fruit, vegetables and other high-fibre foods from Shutterstock (image ID 1021126003). October 2020.
Page reference: 33668
Review key: HICSA-13804