Mediterranean Diet Shows Promise for Irritable Bowel Syndrome Relief
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A pilot study indicates the Mediterranean diet could alleviate symptoms for those with IBS, offering a less restrictive dietary approach.
ANN ARBOR – 2025/06/01 16:01:05 By Alice Roberts
A recent pilot study conducted by researchers at michigan Medicine suggests that the Mediterranean diet may offer a path to symptom relief for individuals suffering from irritable bowel syndrome (IBS).
The study divided participants into two groups: one adhering to the Mediterranean diet and the other following the low FODMAP diet, a commonly prescribed restrictive diet for managing IBS.
Among those in the Mediterranean diet group, 73% experienced a notable advancement in their symptoms, compared to 81.8% in the low FODMAP group.
IBS is estimated to affect between 4% and 11% of the population, with the majority of sufferers preferring dietary adjustments over medication.
While the low FODMAP diet has been shown to improve symptoms in over half of patients, its restrictive nature can make it challenging to maintain.
Prior research at Michigan Medicine explored more accessible dietary alternatives, leading to the advancement of a “FODMAP simple” approach, which focuses on limiting only the food groups within the FODMAP acronym that are most likely to trigger symptoms.
Expert Insights on Dietary Approaches to IBS
“This study adds to a growing body of evidence which suggests that a Mediterranean diet might be a useful addition to the menu of evidence-based dietary interventions for patients with IBS,”
“Restrictive diets, such as low FODMAP, can be difficult for patients to adopt,” said Prashant Singh, MBBS, Michigan Medicine gastroenterologist and lead author on the paper.
“In addition to the issue of being costly and time-consuming, there are concerns about nutrient deficiencies and disordered eating when trying a low FODMAP diet. The Mediterranean diet interested us as an choice that is not an elimination diet and overcomes several of thes limitations related to a low FODMAP diet.”
The Mediterranean diet is widely recognized by physicians for its positive effects on cardiovascular, cognitive, and overall health.However,previous studies examining its impact on IBS have produced inconsistent findings.
In this pilot study, participants were assigned to either the Mediterranean diet or the restriction phase of the low FODMAP diet for a period of four weeks.
The primary goal was to achieve a 30% reduction in abdominal pain intensity after four weeks, as per FDA standards.
All participants in the study had been diagnosed with either IBS-D (diarrhea) or IBS-M (mixed symptoms of constipation or diarrhea).
This research marks the first randomized controlled trial directly comparing the Mediterranean diet to another potential dietary intervention. Previous studies had ofen compared the Mediterranean diet to participants’ typical eating habits or lacked randomization.
Although the Mediterranean diet did provide some symptom relief, the low FODMAP group demonstrated greater improvements in both abdominal pain intensity and IBS symptom severity scores.
The researchers considered the results of this pilot study, involving 20 participants, encouraging enough to justify larger, controlled trials in the future to further investigate the potential of the Mediterranean diet as an effective treatment for IBS patients.
“this study adds to a growing body of evidence which suggests that a Mediterranean diet might be a useful addition to the menu of evidence-based dietary interventions for patients with IBS,” said William Chey, M.D., chief of Gastroenterology at the University of Michigan, president-elect of the American College of Gastroenterology, and senior author on the paper.
The researchers emphasize the need for studies that compare the long-term effectiveness of the Mediterranean diet with the long-term outcomes of the reintroduction and personalization phases of the low FODMAP diet.
Frequently Asked Questions About IBS and Diet
What are the main symptoms of Irritable Bowel Syndrome (IBS)?
The main symptoms of IBS include abdominal pain, bloating, gas, diarrhea, and constipation. These symptoms can vary in severity and frequency among individuals.
How does the low FODMAP diet help with IBS?
The low FODMAP diet restricts certain types of carbohydrates that can be poorly absorbed in the small intestine, leading to fermentation and gas production.By limiting these FODMAPs, the diet can help reduce symptoms like bloating, gas, and diarrhea in people with IBS.
What are the potential benefits of the Mediterranean diet for IBS?
The Mediterranean diet, rich in fruits, vegetables, whole grains, and healthy fats, may help reduce inflammation and improve gut health, potentially alleviating IBS symptoms. It also offers a less restrictive dietary approach compared to the low FODMAP diet.
Are dietary changes the only way to manage IBS?
No, dietary changes are not the only way to manage IBS. Other management strategies include medications, stress management techniques, and probiotics. A comprehensive approach tailored to the individual’s specific symptoms and needs is frequently enough the most effective.
