This guide is general information. If gut symptoms are new, severe or keep coming back, see your doctor.
Somewhere in your family WhatsApp group there is a forward about gut health, usually with a glowing cartoon stomach. And somewhere at the family table there is an uncle who chews a pinch of ajwain after every meal and swears by it.
Between the two sits a fair doubt: is it a real thing, or a wellness word that sells powders? It is real, and it is much less mysterious than the forwards make it sound.
You are also not alone in asking. In our survey of our own buyers, 19% said someone at home keeps an eye on digestion [6]. If pet ki samasya comes up often in your house, this is gut health explained the way we would explain it across the kitchen table.
What does gut health actually mean?
In plain words, what gut health means is how well your whole digestive system works, from the first bite to the last trip to the toilet. You judge it mostly by how your digestion behaves day to day.
The gut, in one line
The gut is the digestive tract: a long, twisting tube of hollow organs that runs from the mouth to the anus [1]. Along that tube, food is broken into parts small enough for the body to absorb and use for energy and growth [1].
Your gut bacteria
That tube is not empty. Bacteria live in it, also called gut flora or the microbiome, and they help with digestion [1].
So when someone says their gut is in good shape, they usually mean something simple. They eat, they digest without fuss, and they go to the toilet regularly without pain.
Here's the catch. "Gut health" has also become a marketing phrase, printed on drinks, powders and capsules. Our view: start with how your digestion feels and what is on your plate, and take the phrase on a pack as a reason to read the back of it.
In short: a healthy gut is one that digests your usual meals comfortably and keeps a regular rhythm.
What is a healthy gut, day to day?
A healthy gut looks different for different people, and that is the first thing worth knowing. Bowel habits vary from person to person, and only you know what is normal for you [7].
Gas is part of normal too. On average, people pass gas 8 to 14 times a day [8].
Bloating is the feeling of fullness or swelling in the belly, and it does not always show. Only about half of the people who feel bloated also have a belly that looks bigger [8].
So a bit of gas after rajma chawal, or a heavy feeling after a wedding lunch, is the gut doing its job. What deserves attention is a change from your own normal that stays for weeks.
If certain meals leave you puffed up every time, our page on foods that can leave you bloated goes through the usual suspects in an Indian diet, with kitchen fixes.
When gut symptoms need a doctor
Most tummy trouble settles in a day or two. A few signs should not wait.
If you have constipation along with any of these, the advice is to see a doctor right away [2]:
- bleeding from the rectum, or blood in the stool
- constant pain in the abdomen
- being unable to pass gas
- vomiting or fever
- pain in the lower back
- losing weight without trying
Whatever the symptom, if something new and worrying appears, call your doctor rather than waiting it out at home. If you are already on treatment for a gut condition, ask your doctor before changing your diet.
When cramps and changed toilet habits keep coming back over months, our IBS guide explains irritable bowel syndrome and how doctors work it out.
Fibre: what your gut bacteria live on
Fibre is the least glamorous word on this page, and the one with the most behind it. If you change one thing for your gut health after reading this, make it the fibre.
Fibre is the part of dal, grains, vegetables and fruit that your gut bacteria work on. They interact with it directly and turn it into useful substances, among them short-chain fatty acids [9].
How much fibre a day
The World Health Organization advises adults to eat at least 25 g of naturally occurring dietary fibre every day [3]. Naturally occurring means fibre that comes inside food: the dal, the atta, the sabzi.
India's own advice points the same way. The ICMR-National Institute of Nutrition's dietary guidelines ask us to prefer whole grains and millets to refined grains [10].
In an Indian kitchen, that mostly comes down to the flour tin. Whole wheat atta has 11.36 g of fibre per 100 g, while maida, the refined flour, has 2.76 g [4]. Swap 100 g of maida for 100 g of atta and you add about 8.6 g of fibre (our arithmetic from those two values).
Chana dal carries 15.15 g per 100 g raw, and barley 15.64 g [4]. The millets sit close to atta: bajra 11.49 g, ragi 11.18 g and jowar 10.22 g [4].
Here's the honest downside. Many foods that bring fibre can also bring gas: lentils and beans, whole wheat, and cabbage-family vegetables such as cauliflower are all on the list of foods that may cause it [11].
So add fibre over a couple of weeks rather than in one weekend, and drink water alongside it. That pacing is our practical advice, not a rule from a study. Which foods carry the most fibre, katori by katori, is the job of our list of fibre-rich foods:
Indian staples by fibre
| Food (raw) |
Fibre, g per 100 g |
| Barley |
15.64 |
| Chana dal (Bengal gram dal) |
15.15 |
| Bajra |
11.49 |
| Whole wheat atta |
11.36 |
| Ragi |
11.18 |
| Jowar |
10.22 |
| Maida |
2.76 |
Per 100 g of the raw food; a cooked katori holds less [4].
In short: swap maida for atta, and white bread for whole wheat, before you buy any gut product.
Dahi, chaas and fermented foods: what one trial found
Every Indian grandmother has a view on dahi with lunch, and most of them are firmly in favour. It is fair to ask whether science agrees with her.
One carefully run trial looked at this in healthy adults for 17 weeks, with 18 people on each diet [5]. People who added more fermented food each day saw the mix of their gut bacteria become more diverse, and markers of inflammation in their blood went down [5].
The group that ate more fibre instead kept the same diversity over that time, although their gut microbes made more of the enzymes that break fibre down [5]. The trial's main planned measure, an immune response score, did not change in either group [5].
Now the limits. This was one small trial, run in the US, in healthy adults, and it did not test Indian foods. It measured bacteria and blood markers, not tummy symptoms or any disease.
Indian homes already make these foods without calling them fermented: set dahi, chaas, the overnight idli and dosa batter, and kanji in winter. None of these was tested in that trial, so we cannot tell you how much each one does.
If "inflammation markers" is a new phrase, our explainer covers what inflammation markers are in plain words.
In short: a katori of dahi or a glass of chaas with lunch is an easy, familiar way to eat a fermented food every day.
Sugar, sweeteners and your gut
Now to the part of the day we know best: the chai. When people ask us about chai and gut health, the question is usually about the sugar, or about whatever replaces it.
For adults, the advised ceiling for sugar is under 5% of the day's total energy [10]. On a 2,000 kcal day that is 100 kcal, and since sugar gives 4 kcal a gram, it comes to about 25 g of sugar [12] (our arithmetic).
If your teaspoon holds about 4 g, three cups of chai with two teaspoons each come to 24 g. That is nearly the whole day's sugar in the cups alone.
Sugar alcohols
Sugar alcohols, also called polyols, are the sweeteners whose names end in "-ol": sorbitol, mannitol, xylitol, erythritol and maltitol are all on the list of things that can cause gas [11].
Dose matters a lot here. In a tolerance trial in young adults, a single drink with 20 g or 35 g of erythritol caused no symptoms, while 50 g brought more nausea and stomach rumbling [13].
In India, a food with 10% or more polyols must carry the line "Polyols may have laxative effect" on its label [12]. So turn the pack over: if a sweetener measures spoon for spoon like sugar, check whether one of those "-ol" names is first on the list.
Other sweeteners and your microbiome
In a 2022 trial of 120 healthy adults, four groups took saccharin, sucralose, aspartame or stevia for two weeks, below the acceptable daily intake, while two control groups did not [14]. Each of the four changed the bacteria in the stool and the mouth, and the changes differed from one person to the next [14].
A change is not the same as harm, and two weeks is a short window. Monk fruit was not one of the sweeteners tested in that trial.
If you sweeten your chai, our pick is a monk fruit sweetener made without sugar alcohols. For the full picture on each sweetener, see our guide to sweetener safety.
Either way, the first change is the same one. Count the spoons that go into your chai today, and start there.
Where The Sweet Change fits
At The Sweet Change, we make monk fruit sweeteners for that daily cup, and we keep the label short.
Our Monk Fruit Sweetener Powder is made with monk fruit, guar fibre and allulose (30% / 35% / 35%), with no erythritol [15]. With Monk Fruit Drops, two drops replace a teaspoon of sugar [15].
Both contain no erythritol or other sugar alcohols, and they come as drops and powder, with sachets coming [15].
Everyday habits that help your digestion
Think of the office lunch eaten at the desk in ten minutes, the cola after it and the chewing gum after that. Small habits like these count for gut health too.
For gas, the advice is plain and costs nothing [11]:
- Eat slowly, sitting down: less air goes down with each bite, and talking while you eat adds to it.
- Smaller meals, more often: a lighter plate at a time is easier on a gut that complains after big meals.
- Cut back on gum, hard sweets and fizzy drinks: drinking through a straw belongs on this list too.
A weekday lunch, Indian style
Here is what we mean by a gut health lunch on a weekday: a katori of dal, a sabzi, two atta rotis or a katori of brown rice, and a katori of dahi or a glass of chaas. It is our example, not a prescription.
It puts fibre and a fermented food on one plate, with nothing bought in a packet.
Ajwain after meals, and other kitchen habits
Ask about ajwain and gut health in any Indian family and someone will have a story. Many Indian homes chew ajwain after meals; in our search we found little human research on it for digestion, so keep it as a family habit, not a treatment.
Adrak in the chai is the other kitchen favourite. Ginger has mostly been studied for nausea, and in some people it can bring heartburn or an upset stomach [16].
If your stomach seems to change in a stressful week, note it down and mention it at your next doctor visit.
And if stress sends you to the biscuit tin, our page on why stress makes us reach for sweets is worth a read.
Guides for your gut, one question at a time
This page is our gut health guide in one place. Each guide below takes one question further.
Irritable bowel syndrome
Our IBS guide covers what irritable bowel syndrome is, its three types, how doctors diagnose it, and the foods that set it off in an Indian kitchen.
Meals that leave you puffed up
Foods that can leave you bloated lists the usual suspects with their Indian versions, the kitchen fixes that reduce gas, and a sample day of eating.
Your gut bacteria, explained
The bacteria in your gut are a community, and what lives there depends on what you feed it. The type, quality and origin of the food you eat all shape those microbes [9].
That is why the advice on this page keeps coming back to the plate rather than a pill.
Why your stomach feels bloated
Some people get more gas from too much fibre, and high-fat foods can add to bloating. A short food and symptom diary is a practical way to see your own pattern, and a doctor may refer you to a dietitian [11].
Write down what you ate and how you felt two or three hours later, for a week.
Gas, and where it comes from
Gas in the gut comes from two places: air you swallow, and bacteria breaking down carbohydrates that were not digested higher up [8].
Knowing which one is behind yours changes what you try first: slower eating for the swallowed air, a look at the plate for the rest.
Foods for your gut, listed
The fibre advice sits inside a bigger one: adults should also eat at least 400 g of vegetables and fruit a day [3]. Spread across sabzi at lunch and dinner and fruit in between, that is easier than it sounds.
Probiotics, prebiotics and fibre
These three words get mixed up on packs. On the food side, the advice is to include more fibre-rich foods such as whole grains, millets, pulses, nuts and vegetables [10].
The guide will sort out what each word means, and what a capsule can and cannot promise.
When you cannot go
Constipation usually means fewer than three bowel movements a week, or stools that are hard, dry, lumpy or painful to pass [7]. People who eat little or no fibre are among those more likely to get it [7].
Heartburn and reflux
Stomach contents coming back up into the food pipe once in a while is common and often causes no symptoms; in some cases it brings heartburn, also called acid indigestion [17].
If reflux symptoms come at night, finishing meals at least 3 hours before lying down may help. Citrus, tomatoes, chocolate, coffee, mint, spicy food and high-fat food are commonly linked to reflux symptoms [18].
The short version for your kitchen
Cheat sheet
- Fibre first: at least 25 g a day from food; atta over maida, and a katori of dal at lunch.
- One fermented food a day: a katori of dahi or a glass of chaas.
- Count the chai spoons: sugar under 5% of the day's energy is about 25 g on a 2,000 kcal day.
- Read the "-ol" names: sugar alcohols on a label can mean gas at high amounts.
- Know the red flags: constipation with blood in the stool, constant belly pain or weight loss without trying means a doctor, now.
Gut health in an Indian home is mostly built at the flour tin and the dahi bowl, one ordinary meal at a time. Start with tomorrow's lunch.
