Are Radishes FODMAP-Friendly and Does Eating Them Cause Gas?

Raphanus sativus serving plateThe colorful radish is a high flavor veggie full of beneficial nutrition and a good source of dietary fiber. Some people do find that eating radishes makes them gassy though, and it can be a very smelly gas at that. This article covers why this happens and how to stop it.

Also ahead, if radishes contain FODMAPs, are they safe for IBS, can eating them help you go to the toilet, why they make you burp, potential side effects, and are they better raw or cooked?

Is Radish High or Low in FODMAPs?

FODMAPs are indigestible carbohydrates that can cause digestive problems for some people. Foods high in FODMAPs can trigger symptoms like an upset stomach, belly bloating, gassiness and diarrhea.

Radishes are classed low-FODMAP and are generally recommended for people following a diet that restricts these type of carbs. They do contain both the oligosaccharide raffinose and sulfur compounds though. Both of these substances can be responsible for bad gas in some people.

While they are nutritious and very good for you, if you are sensitive to FODMAPs it’s best to eat radishes in smaller amounts. They have a strong flavor anyway so you shouldn’t need to have that many of them in one meal anyway.

If you’re on a FODMAP-restricted diet then try and eat a wide range of allowed foods in smaller portion sizes. Other vegetables low in FODMAPs include carrot, parsnip, zucchini, turnip, lettuce, rutabaga, potato and tomato.

Are Radishes Okay for People with IBS to Eat?

Irritable bowel syndrome (IBS) is a condition that can cause intestinal pain, tummy bloating, excessive farting, and alternating bouts of diarrhea and constipation. If you have IBS, you might be wondering if you can eat radish.

As a FODMAP-friendly food, radishes are generally considered safe for people with IBS to eat. Some IBS sufferers have found eating them causes digestive problems though. This is likely due to their raffinose content, as well as sulfur compounds which some people are sensitive to.

Every person with IBS is different. Certain veggies like radish may be fine for some to eat, while they cause an upset stomach for others. Always listen to your body and pay attention to how different foods make you feel in the hours after you have them.

Why Does Eating Radish Give You Gas?


While radishes are low-FODMAP, they do contain a type of oligosaccharide called raffinose. This complex carbohydrate is difficult for your digestive system to deal with. It moves to your large intestine without being fully broken down.

Once raffinose reaches the colon your gut bacteria begin fermenting it. This process produces various intestinal gasses, which can get trapped and leave you feeling bloated and uncomfortable.

Sulfur Compounds

Radishes contain sulfur compounds, which are very good for you but can cause smelly gas when they are broken down by bacterial fermentation. Methanethiol is the main sulfur compound that is responsible for bad smelling farts after eating a lot of radishes.

Sulfides are also associated with stinky gas from radishes. If you have an important meeting the next day, or a date in the evening, be careful eating too many of them in one sitting.Red radishes sliced


Radishes contain goitrogens, which are compounds that can interfere with thyroid function for sensitive people. They can also potentially cause gas and bloating. Cooking radishes will heavily reduce goitrogenic compounds.

Generally, goitrogens are only a problem when consumed in very large amounts by people who already have thyroid problems. Consult your GP if you have any concerns about side effects after eating radish.

Your Gut Microbiome

The bacteria in your gut, your gut microbiome, play an important role in digesting gassy vegetables. Some people’s lower intestines simply have more gas-producing bacteria than others. So even if radishes are generally okay to eat for most people, you might find they personally give you bad gas.

How Much Fiber Is In Radish and What Kind Is It?

These little veggies are a reasonably good source of dietary fiber, containing both soluble and insoluble types. The amount of fiber in radishes will vary depending on the variety and where they are grown. Nutritional databases list a 100g serving of raw red radish as containing approximately 1.6-1.8g of fiber.

They contain a balanced dietary fiber profile with 15.26% soluble fiber and 33.77% insoluble fiber. Radishes are especially rich in lignin, a beneficial type of insoluble fiber.

Does Radish Make You Poop and Can Eating Too Much of Them Cause Diarrhea?

The fiber in radishes makes your stool softer and easier to pass. So yes, in this way eating them can help you poop. If you’re having trouble going to the toilet then eating more fiber-rich foods like radishes can be helpful.

But what about diarrhea? Can eating radishes cause that? Eating a normal amount of them isn’t likely to cause diarrhea.

However, eating a lot of them in one sitting can upset your stomach. If you’re not used to them and you suddenly eat a big bunch of radishes, then your body might let you know with loose stools or diarrhea.

If you’re thinking about adding more fiber to your diet, then it’s a good idea to do it gradually. This gives your body time to adapt and adjust. Also, remember to drink plenty of water. Dietary fiber in your digestive system works best when you’re well-hydrated.

How To Stop Digestive Problems From Radishes

Moderation is Key

The first step to fixing digestive problems from a food like radish is to monitor your intake. Don’t eat too much at once. Start with a small serving and see how your body reacts. It’s all about balance. Too much of a good thing can still cause problems.

Cook Them

Another trick to prevent potential gassiness is to cook your radishes. Cooking can break down some of the raffinose, making it easier for your body to digest. So instead of raw slices in your salad, try sautéing or roasting them for a softer, less gassy alternative.

Consider Probiotics

Try getting more probiotic foods into your diet. Kimchi, kefir and sauerkraut are all great sources. The beneficial bacteria they provide can help improve your digestion, making it easier for your body to break down foods like radishes.Daikon radish sliced

Why Do Radishes Make You Burp?

You might notice that you burp more after eating radishes. That’s because they contain a lot of dietary fiber. Fiber is great for your digestive system, but it can also create gas as your body breaks it down. This gas can then rise up and come out as a burp. This is a completely normal part of digestion and nothing to be worried about.

Another reason why radishes might make you burp is because of the way you eat them. If you eat too fast or talk a lot while eating, you can swallow extra air. This air then comes back up as a burp. To help prevent this, try to eat slowly and not talk too much while you’re eating.

Some burping is a natural body function. But if you’re suddenly doing it a lot and it’s making you uncomfortable it’s likely due to something you just ate or drank.

On the other hand, if burping is an ongoing issue and it’s a good idea to talk to your GP and make sure there’s no underlying health issue causing your burps.

What Are Some Other Side Effects of Eating Radishes?

While radishes are healthy and safe to eat for most people, they can sometimes cause negative side effects. We’ve talked about how they can cause burping and possibly diarrhea if you eat too many at once. But there are a few other things to watch out for.

One possible side effect is a change in your urine or bowel movements. Radishes can sometimes make your urine darker and your bowel movements smellier. This is because of sulfur compounds in this vegetable that your body gets rid of through pee and poop.

Another possible side effect is an allergic reaction. While it’s uncommon, some people are allergic to radishes. If you’re eating them for the first time and notice any symptoms like itching, swelling, or trouble breathing, stop eating them and get professional help right away.

What Are Some Good Low-FODMAP Alternatives to Radish?

  1. Carrots: Carrot are a low-FODMAP root vegetable that can be eaten raw or cooked. They are a healthy source of vitamin A, fiber, and other nutrients.
  2. Cucumbers: Cucumber is FODMAP-friendly, high in water content and can be eaten raw or used in salads.
  3. Red bell peppers: Red or yellow bell peppers are a low-FODMAP veggie that can be eaten raw or cooked. They are a good source of vitamin C, vitamin A, and other vitamins and minerals.
  4. Tomatoes: Tomato is low in FODMAPs and can be eaten raw or cooked. They contain lycopene and vitamin C.

Can You Eat Raw Radish Or Should It Be Cooked?

While raw radishes are perfectly healthy and delicious, if eating them gives you digestive issues the try cooking them. Roasting, sautéing or steaming them can reduce the raffinose content and thus make them easier to digest.

Should You Peel Radishes Before Eating Them?

Peeling radishes isn’t necessary before eating. Their skin is edible and packed with antioxidants and other nutrients. Just make sure they’re well-washed to get rid of any dirt or debris on the skin.

Is Radish Good or Bad For You?

Are radishes good or bad for your gut? Generally good, but it can be a bit of both.

On one hand, the raffinose in them can cause gas, especially for those with sensitive digestive systems or a certain microbiome makeup. Eating too many radishes in one sitting can easily lead to gassiness and smelly farts.

On the other hand, radishes are packed with dietary fiber, aiding digestion and promoting a healthy bowel movement. They’re relatively low in FODMAPs too, making them a safer bet for those with IBS. And their gas-causing potential does have a silver lining — it feeds your gut bacteria and can lead to a healthier microbiome.

By cooking them, eating them in small servings, or combining them with probiotics, you can reduce potential gas problems from this healthy veggie. So, while radishes can occasionally cause a little trouble, their health benefits make them well worth including in your diet.

In the end, whether radishes are good or bad for you will depend on your unique digestive system and how you choose to eat them. Listen to your body and adjust accordingly. Your gut will thank you for it.Cherry Belle radish on wood

Frequently Asked Questions

What nutrients can you get from eating radishes?

Radishes are rich in vitamins and minerals, including vitamin C, potassium, and folate. They are also a good source of antioxidants, which can help protect your cells from damage. Despite being low in calories, radishes are high in fiber which can support digestive health and make you feel full.

Can you eat radish leaves?

Yes, radish leaves, also known as radish greens, are edible and packed with nutrients. They are high in vitamin C, vitamin A, and calcium. They can be cooked like other leafy greens, added to salads, or used in a variety of recipes.

How can eating radishes benefit digestion?

This vegetable is high in fiber which aids digestion by adding bulk to the stool and helping it move through the digestive tract more easily. This can prevent constipation and promote regular bowel movements. Radishes can also support gut health by promoting the growth of beneficial gut bacteria.

How often should you eat radishes for optimal digestive health?

There’s no set amount of radishes you should eat for optimal digestive health as it depends on your overall diet and individual health needs. Incorporating radishes into a balanced diet rich in a wide variety of fruits, vegetables, lean proteins, and whole grains can support good digestive health.

Can radishes help with weight loss?

Radishes are low in calories and high in fiber, making them a good food choice for those trying to lose weight. The high fiber content can help you feel full, reducing the likelihood of overeating.

What are the most popular kinds of radishes eaten in the USA?

Radishes are a commonly eaten root vegetable in the USA, and there are many different varieties available. Some of the most popular kinds eaten include Cherry Belle, French Breakfast, Watermelon, White Icicle, Easter Egg, Malaga, and Daikon radish.

What is the difference between regular radish and daikon?

Radish is a general term that includes various types of radishes, including the daikon. The most common radish is small, round, and red, whereas daikon is a type of Oriental radish that is larger, longer, and white. Daikon radishes also have a milder taste compared to the spicier flavor of smaller, red radishes.

Does daikon cause more or less gas than other radishes?

Daikon radish, like other radishes, contains fiber that can cause gas as it gets digested in the body. However, daikon is also known for its digestive enzymes which aid digestion and can help reduce gas. Compared to other radishes, daikon might cause less gas for some people.

What other root vegetables are low-FODMAP like radishes?

In addition to radishes and daikon, other root vegetables that are considered FODMAP-friendly include carrots, parsnips, turnips, potatoes and rutabagas. These veggies are less likely to cause digestive issues, making them a good choice for those following a low-FODMAP diet.