How Much Fibre Do You Really Need? A Practical Indian Guide to Eating More Fibre

If you want to improve your everyday diet, fibre is one of the simplest places to start.

But fibre often gets discussed only in relation to constipation.

Its role is much broader.

Dietary fibre is found naturally in foods such as whole grains, pulses, vegetables, fruits, nuts and seeds. Different types of fibre behave differently in the digestive system.

WHO's 2023 guideline recommends that adults consume at least 25 grams of naturally occurring dietary fibre per day. It also recommends at least 400 grams of fruits and vegetables for adults and children over 10.

What does 25 grams look like?

The easiest mistake is trying to calculate fibre from one food.

Instead, build it throughout the day.

For breakfast, consider:

• Oats

• Whole-grain preparations

• Fruit

• Nuts or seeds

For lunch:

• Dal

• Vegetables

• Whole grains or minimally polished grains

For snacks:

• Fruit

• Nuts

• Seeds

For dinner:

• Vegetables

• Pulses

• Whole-grain options

You don't need every food at every meal.

The goal is cumulative intake.

Pulses are incredibly useful

Indian cuisine already has a strong foundation for fibre-rich eating.

Dal, chana, rajma, peas and other legumes can contribute both protein and fibre.

This is one reason traditional Indian meals can be nutritionally powerful when properly balanced.

The problem is not necessarily the traditional meal itself.

It's when vegetables, pulses and whole foods gradually get replaced by refined and highly processed convenience foods.

Whole food versus processed food

ICMR-NIN's 2024 dietary guidelines specifically discuss the effects of processing and identify extensive processing of grains, refined flours and certain processed products as examples where fibre and nutrients can be reduced.

This doesn't mean every processed food is unhealthy.

Processing exists on a spectrum.

The more useful question is:

What happened to the original food?

Has the grain retained much of its structure?

Has fibre been removed?

How much added sugar, salt or fat has been introduced?

How large is the portion?

What else is in the meal?

Increase fibre gradually

If you currently eat very little fibre, suddenly doubling your intake may cause discomfort.

Increase gradually.

For example:

• Week 1: Add one fruit daily.

• Week 2: Add vegetables to another meal.

• Week 3: Include dal or another pulse more consistently.

• Week 4: Replace some refined grains with whole-grain or minimally processed alternatives.

And drink enough water.

Your digestive system needs time to adapt to dietary changes.

Don't forget fruits

Fruit sometimes gets unfairly categorized as “sugar.”

Whole fruit is different from sugar-sweetened foods and drinks.

WHO recommends fruits as part of a healthy diet and notes that vegetables and fruits provide dietary fibre, vitamins, minerals and other beneficial components.

So an orange, guava, apple, papaya or other whole fruit can be a practical snack.

You don't need to turn it into juice.

A simple fibre-building plate

Try this mental model:

• ¼ plate: grain/staple

• ¼ plate: pulse or protein source

• ½ plate: vegetables, with fruit elsewhere during the day

Then add nuts, seeds or other appropriate foods according to your needs.

This is not a medical prescription.

It is simply a practical way to make fibre-rich foods more visible in everyday meals.

Fibre is not a magic ingredient

More isn't always better.

Some people with specific digestive conditions may need individualized dietary advice, including adjustments to fibre intake.

That is why general nutrition advice should never replace medical guidance.

But for the general healthy population, one message remains remarkably simple:

Eat more of the foods that naturally contain fibre.

• More vegetables.

• More fruits.

• More pulses.

• More whole grains.

• More nuts and seeds.

Less dependence on foods where the original fibre-rich structure has been heavily removed.

You don't have to become obsessed with grams.

Build better meals, and the numbers become easier.