Australia’s low FODMAP diet marks 20 years of transforming IBS care worldwide

Australia’s low FODMAP diet celebrates 20 years of global impact on IBS management

A world-first dietary innovation from Monash University is celebrating a milestone, as the low FODMAP diet marks 20 years of helping millions of people worldwide manage irritable bowel syndrome (IBS).

Originally introduced in 2005, the low FODMAP diet has since become a cornerstone of dietary management for irritable bowel syndrome (IBS), backed by scientific evidence and global adoption. The Monash University team behind the diet continues to refine and expand its resources, including the internationally popular Monash FODMAP diet app, a food certification program, cookbooks, social media platforms, and online training courses for both patients and healthcare professionals.

Professor Peter Gibson, gastroenterologist and part of the original Monash team, emphasized that up to one in ten people globally live with IBS.

“The low FODMAP diet empowers people to create a diet that works for them. We’re not trying to cut things out completely; we’re helping to reduce the effect FODMAPs have on some people,” he explained.

How the low FODMAP diet works

The diet is based on limiting a group of short-chain carbohydrates—known as FODMAPs (Fermentable Oligosaccharides, Disaccharides, Monosaccharides, And Polyols)—that are poorly absorbed in the small intestine or rapidly fermented in the large intestine. This process produces gas and draws water into the bowel, triggering pain, bloating, and discomfort in people with IBS.

To help users apply the science in daily life, the Monash FODMAP app uses a traffic-light system:

• Red foods are high in FODMAPs,
• Amber foods contain a moderate amount, and
• Green foods are low FODMAP choices suitable for most.

The goal is not permanent restriction, but a phased approach: first, reducing overall intake to calm symptoms, then reintroducing foods to identify specific triggers, and finally, creating a personalized long-term eating plan.

Global recognition and resources

Since its launch in 2012, the Monash FODMAP app has been downloaded more than 1.75 million times. The app and related resources are now available in multiple languages including Spanish, Italian, German, and French, with more translations on the way.

Associate Professor Jane Muir, another founding member of the team, noted the pride in Monash University’s leadership: “It’s the Monash University low FODMAP diet and so it will always be part of Monash University. Everyone involved is proud to have played their part in helping to put diet therapies on the map.”

Research led by Monash and validated globally shows that 50–80% of people with IBS respond positively to the low FODMAP diet, making it one of the most evidence-based dietary interventions for gastrointestinal disorders.

To mark the anniversary, the Monash University School of Translational Medicine will host its annual public lecture, “FODMAPs 20 Years On,” on 16 September in Melbourne.

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