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May 15

Irritable bowel syndrome (IBS) diets and how to choose one – Medical News Today

Irritable bowel syndrome (IBS) is a condition that causes digestive symptoms, such as abdominal pain, diarrhea, or constipation. A person may find that what they eat has an effect on how IBS manifests.

However, symptoms of this condition are highly individual. People can react differently to different foods, and their other symptom triggers can vary as well.

As a result, there is no single IBS diet that will work reliably for everyone. Often, people have to try different options to find what suits them best.

In this article, we look at some of the IBS diets that could help, what they involve, and how to choose one. We also look at other factors that can cause IBS to flare up, and suggest when to contact a healthcare professional.

There is no single diet that can help all people with IBS. This is because a person with IBS may have specific foods that trigger their IBS symptoms.

The International Foundation for Gastrointestinal Disorders (IFFGD) recommends a person keep a diary for 23 weeks to try to identify trigger foods or food groups.

People can use the diary to track:

People can also bring this diary to medical appointments with a doctor or dietitian.

If the diary does not help a person understand their IBS triggers, they may benefit from trying an elimination diet.

An elimination diet is one where a person removes specific foods or food groups from their diet for a period of time to see whether this improves their symptoms.

The IFFGD recommends trying elimination diets over a period of 12 weeks by following these steps:

The IFFGD suggests removing fiber from the diet first, as it can be an IBS trigger, even in those who experience IBS with constipation.

It is important to get supervision from a doctor or dietitian while trying this approach. Eliminating foods from the diet can make it difficult to get the required amount of nutrients. A medical professional can help ensure this does not happen.

FODMAP stands for fermentable oligosaccharides, disaccharides, monosaccharides, and polyols. These are types of short-chain carbohydrates that are present in certain foods. Some people with IBS find that foods high in FODMAPs can trigger their symptoms.

Researchers from Monash University in Melbourne, Australia, developed the Low FODMAP Diet to help with this. The diet involves eating low FODMAP foods in the right portion sizes for a set period of time.

Research from 2016 reports that up to 86% of people with IBS found that a low FODMAP diet reduced their symptoms.

The following table provides some examples of foods that contain either high or low levels of FODMAPs. However, it is not a complete list of foods or portion sizes that are low FODMAP. People can find the full list on the Monash University website. Monash University has also developed a mobile app.

To try the diet, follow these steps:

After this period, people can balance low FODMAP foods with higher FODMAP foods that they may be able to tolerate.

For some people, increasing fiber intake can relieve IBS symptoms, such as chronic constipation.

There are two main categories of fiber: soluble and insoluble. Soluble fiber dissolves in water and is present in foods such as fruits, oats, and beans. Insoluble fiber does not dissolve in water and is present in whole grain foods.

Doctors often recommend soluble fiber to people with IBS. However, both forms of fiber can help with different IBS symptoms in some people.

Foods that are high in insoluble fiber can help add bulk to a persons stool, making bowel movements easier to pass. However, insoluble fiber may also cause diarrhea, bloating, or pain.

Soluble fiber can help reduce bloating and excess gas production. However, some sources of soluble fiber are also high FODMAP.

Generally, it is best to try this approach by gradually increasing fiber intake. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) recommends a person add 23 grams of fiber to their diet per day until they reach a level that works for them.

If increasing fiber intake makes symptoms worse, a person can try increasing the intake more slowly. If that does not help, they may wish to try a different approach.

There are other factors, aside from the foods a person eats, that can contribute to IBS symptoms. These include:

A person may wish to use a symptom diary to track these factors too. It may be that a combination of dietary and lifestyle changes can help. For example, people can try:

Chewing food slowly and thoroughly helps with digestion. It can also prevent a person from swallowing air, which may contribute to feeling bloated. It is advisable to avoid carbonated drinks, particularly at mealtimes.

A person should also get regular exercise, if possible. This can benefit both mental and physical health and may reduce constipation.

While IBS is a physical disorder, people with the condition are more likely to have experienced traumatic events in early life, according to the NIDDK.

A 2018 meta-analysis found that early trauma and post-traumatic stress disorder increased the likelihood of IBS across over 648,000 participants. Trauma can have a long-term impact on mental and physical health.

Some people may find it helpful to discuss this with a trauma-informed therapist. Reducing stress overall is also generally beneficial for digestion, even if it is not a direct IBS trigger.

Learn more about the effects of stress on the body here.

There are numerous IBS diets that people can try in order to manage their symptoms and gain better quality of life.

However, it is important to remember that what works for one person may not work for another. Sometimes, a combination of dietary and lifestyle changes are necessary.

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Irritable bowel syndrome (IBS) diets and how to choose one - Medical News Today

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