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Nutrition guide
What is fibre?
Fibre is the part of plants we do not digest, but it feeds beneficial gut bacteria, softens stools and helps us feel full. SACN and the NHS recommend about 30g of fibre a day for adults; the average UK intake is still well below that - a gap I discuss in almost every lifestyle consultation.
Written for Meal Pilot by Dr James, MBBS - a practising NHS GP in the United Kingdom. The information below reflects UK public-health guidance (including NHS Eatwell principles and SACN reference intakes). It is educational, not a personal prescription: always follow advice tailored to you by your own GP, practice nurse or registered dietitian.
30g
per day
NHS / SACN adult target - many of us fall short
Gut
health
Bulk, bacteria and bowel habit
Higher
is good
Unlike salt or sugar on traffic lights
1
Fibre in a balanced diet
Fibre comes with vegetables, fruit, wholegrains, beans, lentils, nuts and seeds - the same foods that carry vitamins, minerals and polyphenols. The Eatwell Guide’s emphasis on higher-fibre starchy foods and plenty of plants is partly a fibre strategy. A higher-fibre diet is associated with lower risk of heart disease, stroke, type 2 diabetes and bowel cancer in population research.
2
Gut health and NHS practice
Constipation, irritable bowel syndrome and diverticular disease are routine in general practice. Fibre, fluid and movement are first-line conversations before laxatives. Increasing fibre too fast can cause wind and bloating - build up over two to three weeks, drink water with meals, and spread beans and pulses across the week rather than a single huge bowl of chilli.
3
Types of fibre
Soluble fibre (oats, barley, beans, apples) can help soften stools and modestly support cholesterol management. Insoluble fibre (wholegrains, wheat bran, skins of vegetables) adds bulk. Most whole foods contain a mix. A variety of plants - “30 plants a week” is a popular target - supports gut diversity better than one supplement alone.
4
Practical portions
Choose wholegrain bread and pasta where your family accepts them, keep frozen vegetables and tinned beans in the cupboard, add chickpeas to curries, and leave skins on potatoes when appropriate. A handful of nuts is fibre plus healthy fat - portion size still matters for calories.
5
Supplements
Fybogel and similar products are useful when we prescribe them for constipation, but food-first fibre supports broader nutrition. If you consider bran or inulin supplements, introduce slowly and discuss with a pharmacist or GP if you take other medicines - fibre can affect absorption timing.
Why Meal Pilot highlights fibre positively
Unlike fat, sugar and salt, there is no UK “high fibre” red traffic light on standard front-of-pack labels in the same way. Higher fibre per portion on a recipe is usually a green flag: lentil dal, veg-heavy stir-fries, wholegrain sides. If you are on a low-fibre diet after bowel surgery or during a flare of Crohn’s or colitis, follow your specialist team instead.
NHS further reading
Official NHS pages go deeper on the science and practical tips - especially if you are making sustained changes to your diet.
NHS: How to get more fibre into your diet
NHS: Starchy foods and carbohydrates (fibre)
Important
This article is general information from Meal Pilot. It does not diagnose conditions or prescribe treatment. If you have symptoms, long-term conditions, take regular medicines, or are pregnant or breastfeeding, speak to your own GP or NHS 111 when unsure.
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