Nutrition basics

25 Grams of Fibre a Day: How to Get There from Your Kitchen

The World Health Organization recommends at least 25 grams of fibre a day, and the Saudi Healthy Plate raises it to 28. The good news: one bowl of lentils covers more than half the way.

8 minute read Published September 25, 2026 Reviewed by: EEINA team
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00The number

Fibre carries no calories worth counting, so we forget it. Yet it's the number that shapes fullness and blood sugar.

When we think about food we count calories and protein, and rarely fibre, even though large studies tie it closely to heart health, blood sugar control and weight.[3] The best part is that its sources are already in our kitchen: lentils, chickpeas, fava beans, oats and dates.

25 g

daily minimum of naturally occurring fibre for adults, per the World Health Organization.

15–30%

lower risks for the highest fibre eaters versus the lowest, in an analysis of 185 studies.

15.6 g

in a cup of cooked lentils more than half the daily minimum in one dish.

Don't look for fibre in a supplement tub. Look for it in the lentil pot.

How much fibre do you need?

The World Health Organization updated its guidance in 2023: adults should get at least 25 grams a day of fibre occurring naturally in food, alongside 400 grams of vegetables and fruit.[1] Children need less: 15 grams at ages 2 to 5, 21 grams at 6 to 9, and 25 grams from age 10.[1]

In Saudi Arabia, the SFDA's National Nutrition Committee built the Saudi Healthy Plate 2024 on at least 28 grams of fibre, preferring whole fruit over juice to get there.[2]

Why does fibre matter? What the largest review found

A 2019 analysis in The Lancet pooled 185 long-term studies and 58 clinical trials. The highest fibre eaters had a 15 to 30% lower risk of death from any cause, heart disease, stroke, type 2 diabetes and colorectal cancer than the lowest.[3]

The largest risk reduction came at 25 to 29 grams a day, with signs of further benefit above that.[3] In trials, higher fibre intake was linked to lower body weight, systolic blood pressure and total cholesterol.[3] These are associations in the general population, not treatment for an existing disease.

Where do we stand today?

There is no recent national dietary survey measuring fibre in the Saudi diet directly. The closest figure is a 2026 estimate built from food-supply data and statistical modelling, which puts median adult intake at about 14.6 grams a day, with only about 79 grams of fruit and 62 grams of vegetables.[4]

If that estimate holds, the gap is about ten grams a day. One bowl of pulses closes it; you don't need to overhaul your diet.

Fibre in our kitchen, in numbers

These figures come from the US Department of Agriculture (USDA) database, per 100 grams and per familiar portion:[5]

FoodFibre per 100 gPortionFibre per portion
Lentils, boiled7.9 g1 cup (198 g)about 15.6 g
Chickpeas, boiled7.6 g1 cup (164 g)about 12.5 g
Fava beans, boiled5.4 g100 g5.4 g
Bulgur, cooked4.5 g100 g4.5 g
Oats, dry10.1 g⅓ cup (27 g)about 2.7 g
Medjool date6.7 g1 date (24 g)about 1.6 g

Notice the gap between pulses and everything else: one cup of lentils equals six portions of oats. That's why pulses remain the fastest route to your daily number.

A day that reaches 25 grams without noticing

Worked example from the table:
  1. Breakfast: 40 g of oats with two Medjool dates: about 7.3 g.
  2. Lunch: a cup of lentil soup: about 15.6 g.
  3. Dinner: half a cup of chickpeas (82 g) in a salad: about 6.2 g.
  4. Total: about 29 grams, before counting vegetables and fruit.

You don't need all of that in one day. A pulse dish a day, whole grains at breakfast, and whole fruit instead of juice usually close the gap.

Raise it gradually, with water

Jumping from 14 to 30 grams overnight can cause bloating and wind. Add one portion every few days and drink enough water, because fibre needs fluid to do its job. Soaking pulses and changing the water before cooking eases bloating for many people.

Two common myths

  • "Supplements replace food." The World Health Organization's recommendation is specifically for fibre naturally present in food.[1] Whole food brings protein and minerals a tub can't.
  • "Natural juice is as good as fruit." Juicing drops most of the fibre and keeps the sugar, which is why the Saudi Healthy Plate prefers whole fruit to juice.[2]
Note: this content is educational and does not replace advice from a doctor or dietitian, especially for anyone with kidney or digestive disease or on a special diet. Fibre figures are from the USDA database and vary slightly by variety and cooking method.

Frequently asked questions

How many grams of fibre do I need a day?
The World Health Organization recommends that adults get at least 25 grams of naturally occurring fibre a day; the Saudi Healthy Plate 2024 is built on at least 28 grams.
Which foods in our kitchen are richest in fibre?
Pulses first: a cup of boiled lentils has about 15.6 grams and a cup of boiled chickpeas about 12.5 grams. Then whole grains such as oats and bulgur, dates and whole fruit.
Can fibre supplements replace food?
The World Health Organization's recommendation is for fibre naturally present in food. Whole food brings protein, vitamins and minerals that supplements don't.
Why do I feel bloated when I add fibre?
A sudden increase surprises the gut. Add one portion every few days, drink enough water, and try soaking pulses and changing the water before cooking.
Is natural juice a good source of fibre?
No. Juicing removes most of the fibre, which is why the Saudi Healthy Plate prefers whole fruit to juice.

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Built on published sources (World Health Organization · The Lancet · SFDA · USDA) and reviewed under our editorial policy

Sources

  1. WHO updates guidelines on fats and carbohydrates (17 July 2023): at least 25 g of naturally occurring dietary fibre per day for adults. World Health Organization
  2. Alhumaidan OA et al. Saudi healthy plate-2024 (SFDA National Nutrition Committee). BMC Nutrition 2025. BMC Nutr 2025 (PMC12330179)
  3. Reynolds A et al. Carbohydrate quality and human health: a series of systematic reviews and meta-analyses. The Lancet 2019;393:434–445. The Lancet, 2019
  4. Alhumaidan O et al. Estimating dietary intake and nutrient adequacy among adults in Saudi Arabia. BMC Nutrition 2026. BMC Nutr 2026 (PMC13281250)
  5. USDA FoodData Central, SR Legacy: lentils boiled (172421), chickpeas boiled (173757), Medjool dates (168191), oats (173904), bulgur cooked (170287), fava beans boiled (173753). U.S. Department of Agriculture

One bowl of pulses
covers half the way

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