Fibre: The One Nutrient Most Indians Are Not Getting Enough Of

If there is a single dietary change that would improve gut health, reduce chronic disease risk, and support immunity across the Indian population, nutrition researchers would likely agree on fibre.

Not protein. Not vitamins. Not superfoods.

Fibre the part of plant food that the human body cannot digest, and that until recently was considered nutritionally inert. It turns out the part we can't digest is doing some of the most important work.

What Fibre Actually Does

For most of nutritional history, fibre was understood as a bulking agent something that added volume to stool and kept digestion moving. That understanding was incomplete.

The more accurate picture: fibre is the primary food source for the trillions of bacteria that live in your gut. When you eat fibre, you aren't digesting it your gut bacteria are. They ferment it, and in doing so, they produce short-chain fatty acids (SCFAs): butyrate, propionate, and acetate.

These SCFAs are not waste products. They are:

• The primary fuel source for the cells lining your colon
• Regulators of gut inflammation
• Signals to the immune system that influence how aggressively it responds to perceived threats
• Contributors to insulin sensitivity and blood sugar regulation
• Producers of serotonin precursors the gut produces approximately 90% of the body's serotonin

When you don't eat enough fibre, your gut bacteria don't produce enough SCFAs. The gut lining becomes less robust, inflammation increases, immune regulation deteriorates, and the microbiome loses diversity. The downstream effects touch nearly every system in the body.

How Much Do Indians Actually Get?

The Indian Council of Medical Research recommends 40g of dietary fibre per day for adults among the higher recommendations globally, reflecting a traditional Indian diet built around fibre-rich foods.

Studies on actual consumption in urban Indian populations consistently find average intake of 15–20g per day roughly half the recommended amount, and declining as traditional whole foods are replaced by packaged refined alternatives.

Rural Indian populations eating traditional diets typically meet or exceed the recommendation. Urban Indians eating modern packaged food diets fall significantly short. This gap maps almost perfectly onto the distribution of lifestyle diseases diabetes, cardiovascular disease, obesity, digestive disorders which are concentrated in urban populations and rising rapidly.

Why the Gap Is Growing

Traditional Indian food was extraordinarily fibre-rich. A meal of dal, sabzi, roti made from whole wheat or jowar or bajra, and a seasonal vegetable dish would deliver 15–20g of fibre in a single sitting.

The modern urban Indian meal increasingly substitutes:

• Whole grains → refined grains: Maida roti instead of whole wheat, white rice as the dominant grain, refined packaged bread
• Dal as a main → dal as a side: Portions shrinking as packaged protein and restaurant food become more common
• Seasonal sabzi → packaged convenience: Frozen vegetables, packaged curries, and restaurant food that uses less vegetable matter than home cooking
• Whole fruit → packaged juice: Fruit juice removes all fibre while retaining the sugar
• Traditional snacks → packaged snacks: Roasted chana and seasonal fruits replaced by biscuits, chips, and namkeen made from refined flour

Each substitution reduces fibre intake. Accumulated across a daily diet, the difference between a traditional Indian meal pattern and a modern urban one is 20–25g of fibre roughly equivalent to eating no vegetables, no whole grains, and no legumes for an entire day.

Two Types of Fibre — Both Matter

Soluble fibre dissolves in water, forming a gel in the digestive system. It slows glucose absorption (reducing blood sugar spikes), lowers LDL cholesterol, and feeds specific beneficial bacterial strains. Sources: oats, dal, apple, banana, sabja seeds, psyllium husk (isabgol).

Insoluble fibre doesn't dissolve. It adds bulk to stool, speeds transit time through the colon, and reduces the contact time between the colon lining and potential carcinogens in food. Sources: whole wheat, brown rice, vegetables, the skins of fruits and vegetables.

Most whole plant foods contain both types in varying ratios. Eating a variety of whole plant foods — rather than supplementing with a single fibre source delivers both types and supports a more diverse microbiome.

The Supplement Question

Isabgol (psyllium husk) is the most common fibre supplement used in India, and it does work for its primary purpose of regulating bowel movements. But supplement fibre and whole food fibre are not equivalent.

Whole food fibre arrives packaged with vitamins, minerals, polyphenols, and other bioactive compounds that work synergistically with the fibre. Psyllium husk provides soluble fibre and little else. It is a useful tool for specific digestive problems, not a replacement for dietary fibre from whole foods.

The microbiome responds to dietary diversity. Eating 30 different plant foods per week a target associated with measurably higher microbiome diversity in research cannot be replicated by a single fibre supplement.

Practical Ways to Close the Gap

The simplest approach: add rather than replace. Every addition of a whole plant food to a meal increases fibre without requiring the removal of anything.

Adding two or three of these per day closes most of the gap without any significant dietary change.

The Amritatva Approach

Functional ingredients that deliver fibre and other bioactive compounds built into food you already eat, not added as supplements.

Explore the range →

Further reading: 5 Traditional Indian Foods That Heal Your Gut →