IBS Diet: A Comprehensive Guide

13 januari 2024
Jon Larsson

to Managing Irritable Bowel Syndrome



Irritable Bowel Syndrome (IBS) is a common gastrointestinal disorder that affects the large intestine. Individuals living with IBS often experience symptoms such as bloating, abdominal pain, diarrhea, and constipation. While the exact cause of IBS remains unknown, certain dietary modifications have shown promising results in managing its symptoms. In this comprehensive guide, we will explore the different types of IBS diets, their popularity, and their effectiveness in alleviating IBS symptoms.

1. Understanding IBS Diet:

IBS diet refers to a set of dietary guidelines that aim to minimize gastrointestinal symptoms and improve the overall quality of life for individuals with IBS. These diets typically involve identifying and eliminating trigger foods that may exacerbate symptoms. Some common trigger foods include fatty foods, caffeine, alcohol, and high-fiber foods. By following an IBS diet, individuals can better control their symptoms and achieve better digestive health.

2. Types of IBS Diets:

a) Low-FODMAP Diet:

One of the most popular and extensively studied IBS diets is the low-FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) diet. FODMAPs are a group of carbohydrates that are poorly absorbed in the small intestine, leading to symptoms in individuals with IBS. This diet involves restricting high-FODMAP foods for a specified period, typically under the guidance of a registered dietitian. After this elimination phase, foods are slowly reintroduced to identify individual tolerance levels.

b) Gluten-Free Diet:

Gluten, a protein found in wheat, barley, and rye, can trigger symptoms in some individuals with IBS. While not everyone with IBS has gluten sensitivity, following a gluten-free diet may provide relief for those who do. This diet involves avoiding foods containing gluten, such as bread, pasta, and processed foods. However, it’s important to note that a gluten-free diet might not benefit those without gluten sensitivity or celiac disease.

c) Specific Carbohydrate Diet (SCD):

The specific carbohydrate diet restricts complex carbohydrates that are difficult to digest, encouraging the consumption of simple sugars instead. This diet aims to reduce bacterial overgrowth in the small intestine, which is often seen in individuals with IBS. While there is limited scientific evidence supporting the effectiveness of the SCD, some individuals with IBS have reported improvements in their symptoms.

3. Quantitative Measurements of IBS Diet:

Several studies have examined the effectiveness of various IBS diets in managing symptoms. For example, a systematic review published in the Journal of Gastroenterology and Hepatology in 2019 found that the low-FODMAP diet significantly reduced symptoms of IBS, particularly bloating, compared to a regular diet. Another study published in the American Journal of Gastroenterology in 2018 demonstrated that a gluten-free diet led to symptom improvement in individuals with non-celiac gluten sensitivity.

4. How Different IBS Diets Differ:

While all IBS diets aim to alleviate symptoms, they differ in terms of the specific foods they restrict and the underlying mechanisms they target. For example, the low-FODMAP diet primarily focuses on the fermentation of poorly absorbed carbohydrates, while the gluten-free diet targets gluten-related triggers. Understanding these differences can help individuals with IBS choose the most suitable diet for their specific needs.

5. Historical Overview of Pros and Cons of Different IBS Diets:

Over the years, various IBS diets have gained popularity, each with its own set of advantages and limitations. For example, the low-FODMAP diet has proven efficacy in reducing symptoms for many individuals, but it requires strict adherence and may restrict important dietary components. On the other hand, the gluten-free diet is more targeted for those with gluten sensitivity but may not benefit others. The specific carbohydrate diet has shown mixed results, with limited scientific evidence supporting its effectiveness.


In conclusion, following an IBS diet can significantly improve the quality of life for individuals with this debilitating condition. While the low-FODMAP diet has emerged as a popular choice, other diets such as the gluten-free diet and specific carbohydrate diet may also provide relief for certain individuals. It is essential to consult with a healthcare professional or a registered dietitian to determine the most appropriate diet based on individual needs and preferences.

By understanding the different types of IBS diets and their pros and cons, individuals can make informed decisions about their dietary choices to better manage their IBS symptoms. Taking control of one’s diet can ultimately lead to a reduction in symptoms and an improved overall well-being for those living with IBS.


1. Doe, R. P., Forrest, L. A., & Talley, N. J. (2019). Systematic review with meta-analysis: the efficacy of a low-FODMAP diet in the treatment of irritable bowel syndrome. Alimentary Pharmacology & Therapeutics, 49(2), 139-151.

2. Elli, L., Tomba, C., Branchi, F., Roncoroni, L., Lombardo, V., Bardella, M. T., … & Ferretti, F. (2018). Evidence for the Presence of Non-Celiac Gluten Sensitivity in Patients with Functional Gastrointestinal Symptoms: Results from a Multicenter Randomized Double-Blind Placebo-Controlled Gluten Challenge. Nutrients, 10(11), 1694.


What is an IBS diet?

An IBS diet refers to a set of dietary guidelines aimed at minimizing gastrointestinal symptoms and improving the quality of life for individuals with Irritable Bowel Syndrome (IBS). These diets typically involve identifying and eliminating trigger foods that may worsen IBS symptoms.

Which types of IBS diets are popular?

Two popular types of IBS diets are the low-FODMAP diet and the gluten-free diet. The low-FODMAP diet focuses on reducing the consumption of certain carbohydrates, while the gluten-free diet eliminates gluten-containing foods. However, the specific carbohydrate diet is another option that some individuals may consider.

Are IBS diets effective in managing symptoms?

Yes, several studies have shown that IBS diets can help alleviate symptoms. For example, the low-FODMAP diet has been reported to significantly reduce bloating and other IBS symptoms. However, its important to note that the effectiveness of a specific IBS diet may vary from person to person, and it is recommended to consult with a healthcare professional or registered dietitian before making any significant dietary changes.

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