Dietary fructose intolerance, fructan intolerance and FODMAPs

Amy Fedewa, Satish S.C. Rao

Research output: Contribution to journalArticlepeer-review

101 Scopus citations


Dietary intolerances to fructose, fructans and FODMAPs (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) are common, yet poorly recognized and managed. Over the last decade, they have come to the forefront because of new knowledge on the mechanisms and treatment of these conditions. Patients with these problems often present with unexplained bloating, belching, distension, gas, abdominal pain, or diarrhea. Here, we have examined the most up-to-date research on these food-related intolerances, discussed controversies, and have provided some guidelines for the dietary management of these conditions. Breath testing for carbohydrate intolerance appears to be standardized and essential for the diagnosis and management of these conditions, especially in the Western population. While current research shows that the FODMAP diet may be effective in treating some patients with irritable bowel syndrome, additional research is needed to identify more foods items that are high in FODMAPs, and to assess the long-term efficacy and safety of dietary interventions.

Original languageEnglish (US)
Article number370
JournalCurrent Gastroenterology Reports
Issue number1
StatePublished - Jan 2014


  • Breath testing
  • Diet
  • Fructan intolerance
  • Fructose intolerance
  • Fructose malabsorption
  • Irritable bowel syndrome

ASJC Scopus subject areas

  • Gastroenterology


Dive into the research topics of 'Dietary fructose intolerance, fructan intolerance and FODMAPs'. Together they form a unique fingerprint.

Cite this