Which Dal Causes Gas? Every Daal Ranked, Lightest to Heaviest
Which dal causes gas the least? Dhuli moong (the yellow, skinned kind) is the gentlest, red masoor comes next, and the heavy end belongs to whole beans: rajma, lobia, both chanas and soybean. Below you’ll find every common daal ranked from lightest to heaviest, the cooking steps that genuinely cut the rumble, how daal sits with acidity, constipation and IBS, and the few signs that mean it isn’t gas at all.
The short version
- Lightest: dhuli moong, then red masoor, then arhar (toor)
- Heaviest: rajma, lobia, kala and kabuli chana, soybean, mash (urad)
- Biggest fixes: soak, throw the soak water, cook until it crushes easily, start small
- Your gut adapts: eating a little daal most days usually means less gas within a few weeks
- Not gas: blood in stool, weight loss, pain that wakes you, vomiting
Prefer to listen? This post as a 4 min video · Video page with transcript
Why daal makes gas in the first place
Pulses carry a family of sugars (oligosaccharides, mainly raffinose and stachyose) that your small intestine simply can’t break down. You don’t make the enzyme for it. So these sugars travel, untouched, down to the large bowel, where billions of resident bacteria are waiting, and they feast, and the by-product of that feast is gas: hydrogen, carbon dioxide and, in some people, methane.
That’s it. Nothing is wrong with you.
Two more things add to the load: the skin (chilka) on whole pulses brings extra fibre for bacteria to ferment, and undercooked daal lets more starch slip past digestion. This is why the same daal can feel light one day and heavy the next: a watery, fully cooked moong at lunch is a different thing from half-soft rajma eaten fast at 11 at night.
The gas comes from your gut bacteria eating what you couldn’t. Cooking and soaking simply leave them less to eat.
Every daal ranked, lightest to heaviest
The ranking follows processing (split and skinned is lighter than whole with skin) and long kitchen experience. It isn’t a lab scoreboard, and your gut may swap two neighbours around.
| Daal | Gas level | Why | Best fix |
|---|---|---|---|
| Dhuli moong (yellow) | Lowest | Split, skinned, cooks very soft | Rinse well, no soak needed |
| Red masoor (dhuli) | Low | Split, skinned, cooks in minutes | Rinse, cook until it melts |
| Arhar or toor | Low to medium | Split, a little denser | Soak 30 minutes, cook fully |
| Chilka or sabut moong | Medium | Skin adds fibre | Soak 4 to 6 hours |
| Sabut masoor, matar daal | Medium | Skin, or dense dried pea | Soak, discard water |
| Chana daal | Medium to high | Dense, slow to soften | Soak 2 hours, cook soft |
| Mash (urad), moth, kulthi | High | Gluey, rich, long cooking | Soak overnight, small katori |
| Kala and kabuli chana | High | Whole, skin, more gas sugars | Soak 8 to 10 hours, discard water |
| Lobia, rajma, soybean | Highest | Whole beans, most gas sugars | Soak overnight, boil hard, cook very soft |
Bhuna chana, the roasted snack, deserves its own mention. It’s dry and eaten by the handful, so it bloats plenty of people who never have trouble with a bowl of daal.
Arhar dal gas banati hai kya?
Arhar (toor) makes less gas than most people fear. It sits in the light half of the list, just behind moong and red masoor. Often the real culprit is the bowl size, a heavy ghee tarka, or oily “polished” daal that wasn’t rinsed.
Rajma gas banta hai kya?
Yes, rajma is one of the gassiest pulses you can eat, and it carries a separate safety rule. Raw or undercooked red kidney beans contain a natural toxin (a lectin) that can cause hours of vomiting, so rajma must be soaked and then boiled hard for at least 10 minutes before slow cooking. Our rajma and lobia safety guide has the full method. Fully cooked, well-soaked rajma in a modest portion is far kinder to the stomach than the half-soft kind.
How to cook daal so it makes less gas
Nothing removes gas completely. Together, these steps make a real difference.
- Rinse 3 times: swirl the daal in a bowl of water and pour it off until it runs almost clear. This also washes away dust and polish oil.
- Soak in plenty of water: about 1 cup daal to 3 cups water. Dhuli moong and red masoor need 0 to 30 minutes, arhar 30 minutes, chana daal 2 hours, whole moong 4 to 6 hours, and whole beans (rajma, lobia, both chanas, mash, soybean) 8 to 12 hours.
- Throw the soak water away: some of the gas-making sugars leach into it. Cook in fresh water: roughly 3 cups for 1 cup split daal, 3.5 to 4 cups for whole pulses.
- Boil hard, uncovered, for the first 5 to 10 minutes (10 minutes is the minimum for rajma). Skim the foam if you like; it helps stop the pot boiling over.
- Cook until a grain crushes flat between your fingers. In a pressure cooker that’s roughly 2 whistles for dhuli moong, 1 to 2 for red masoor, 3 for arhar, 4 for chana daal, and 5 to 6 whistles plus 10 to 15 minutes on low for soaked rajma, chana or whole mash.
- Keep the tarka moderate: 1 to 2 teaspoons of oil or ghee per katori is plenty. A pool of ghee slows the stomach and makes a heavy daal feel heavier.
- Start small and build up: half a katori a day for a week, then a full katori. Over 2 to 3 weeks most people find the rumbling settles as the gut adjusts.
Hing in the tarka, ajwain and saunf after meals are the old kitchen companions for this problem, and they’re covered properly (with who should skip them) in our guide to bloating and gas after meals, so there’s no need to repeat them here.
Desi kitchens matched the daal to the person: thin moong for the sick and the new mother, mash and rajma for a winter Sunday lunch. Ayurveda calls moong light (laghu) and urad heavy (guru), and Unani cooks paired heavy pulses with ginger and hing. Tradition, and good sense too.
Is moong dal good for acidity, constipation and IBS?
Acidity
Plain yellow moong daal is usually one of the easiest foods for someone with acidity. The trouble usually rides along with it: a big spoon of ghee, green chillies, garlic fried until dark, tomato and imli for sourness, a heaped plate, and lying down within 2 or 3 hours of eating. Keep the tarka light, eat dinner early and see if the burning eases.
Constipation
Daal helps most people stay regular because it adds fibre, especially the whole kinds with skin. But fibre needs water to work, so drink through the day. If you jump from almost no daal to two big bowls, expect some gas first; build up over a couple of weeks instead.
IBS
Pulses are among the classic high-FODMAP foods, the group of fermentable sugars that commonly set off IBS symptoms. That doesn’t mean a lifetime ban. Many people with IBS manage a few tablespoons of well-soaked, well-rinsed, thoroughly cooked daal, and red masoor or dhuli moong usually go down better than whole beans. A dietitian can guide a proper elimination and reintroduction trial. If you aren’t sure whether you’re dealing with IBS at all, our IBS or just gas checklist walks through the difference.
A two-week gas diary
For 14 days, note which daal you ate, how much, how it was cooked and how you felt 3 to 6 hours later. The pattern is often one pulse, the portion or a late dinner, not daal in general.
When it isn’t gas: signs to take seriously
Ordinary daal gas comes and goes, passes with wind or a stool, and doesn’t make you ill. See a doctor soon if you notice blood in the stool or black, tarry stool, weight loss you can’t explain, belly pain that wakes you at night, repeated vomiting, fever, trouble swallowing, feeling unusually tired or pale, or a change in bowel habit lasting more than 3 weeks, especially past the age of 50. Go to an emergency department the same day for severe pain with a swollen, hard belly and no wind or stool passing, or pain with vomiting that won’t stop. A baby or young child with a swollen tummy, vomiting and unusual sleepiness needs a doctor straight away. If you have kidney disease, your doctor or dietitian should set how much daal suits you.
Pregnancy hormones slow the gut, so bloating is common; lighter daals and smaller portions help. Pain, bleeding or fever in pregnancy is a call to your doctor or midwife, not a gas question.
Dal gas questions people ask most
Which dal causes gas the most?
Whole beans cause the most gas: rajma, lobia, soybean, kala chana and kabuli chana, with mash (urad) close behind. They hold more of the gas-making sugars and keep their skins. Soaking overnight, throwing away the soak water and cooking until very soft all help.
Arhar dal gas banati hai kya?
Arhar makes a little gas, but less than most pulses. It sits just behind moong and red masoor on the light side of the ranking. Rinse oily polished arhar well, soak it for 30 minutes and cook it fully soft.
Rajma gas banta hai kya?
Yes, rajma is one of the gassiest pulses. Soak it overnight, discard the water, boil it hard for at least 10 minutes and then cook until it is creamy inside. Never eat raw or half-cooked rajma, because of the natural toxin in kidney beans.
Is moong dal good for acidity?
Usually yes. Plain yellow moong daal with a light tarka is one of the gentlest foods for acidity. Go easy on ghee, green chillies and sour additions, keep the portion moderate and leave 2 to 3 hours before lying down.
Does soaking dal reduce gas?
Yes, a little. Some of the gas-making sugars leach into the soak water, so throw that water away and cook in fresh water. Soaking also helps the daal cook through fully, which matters just as much.
Chana dal gas banata hai kya?
Chana daal is on the heavier side because it is dense and slow to soften. Soak it for about 2 hours, cook it until a grain crushes easily and keep the portion to one katori.
Does urad or mash dal cause gas?
Mash is one of the heavier daals, especially whole black urad cooked as daal makhani with butter and cream. Soak whole urad overnight, cook it very soft and eat a smaller katori.
Should I remove the foam from dal to avoid gas?
You can, but it won’t make much difference to gas. The foam is mostly plant compounds called saponins and a little protein. Skimming it mainly stops the pot boiling over and gives a clearer daal.
Is dal good for constipation?
Yes, for most people daal helps, because it adds fibre. Whole daals with skin carry more fibre than dhuli ones. Drink enough water, and increase your portion slowly so you don’t swap constipation for bloating.
Can I eat dal if I have IBS?
Often yes, in small portions. Pulses are high in fermentable sugars that can trigger IBS, so start with a few tablespoons of well-cooked red masoor or dhuli moong and see how you react. A dietitian can guide a structured trial.
Why does dal give me more gas at night?
Late dinners tend to be bigger, eaten faster and followed by lying still, all of which make bloating feel worse. Eat daal at dinner 2 to 3 hours before bed, choose a lighter daal and take a short walk after.
When is bloating a sign of something serious?
See a doctor for blood or black stool, unexplained weight loss, pain that wakes you, vomiting, fever, or a bowel change lasting more than 3 weeks. Severe pain with a hard, swollen belly and no wind passing is an emergency.
More pulse guides live in Grains, Daals & Pulses, and our gentle moong dal khichdi for sick days is the lightest place to start.