What are FODMAPs? How are they relevant to GI symptoms?

FODMAPs are a group of sugars and short chain carbohydrates that are poorly absorbed in the small intestine. They include short chain oligo-saccharide polymers of fructose (fructans) and galactooligosaccharides (GOS, stachyose, raffinose), disaccharides (lactose), monosaccharides (fructose), and sugar alcohols (polyols), such as sorbitol, mannitol, xylitol, and maltitol. Most FODMAPs are naturally present in food and the human diet, but the polyols may be added artificially in commercially-prepared foods and beverages.

FODMAPs may cause digestive discomfort in people who are hypersensitive to luminal distension, but they do not cause intestinal inflammation. When FODMAPs reach the small intestine, they move slowly, attracting water. When they pass into the large intestine, FODMAPs are fermented by gut bacteria, producing gas as a result. This is a normal phenomenon, common to everyone. The resultant production of gas potentially results in bloating and flatulence. In people with IBS, the extra gas and water cause the intestinal wall to stretch and expand, which can cause exaggerated sensations of pain and discomfort.

However, some naturally occurring FODMAPs help avert digestive discomfort because they produce beneficial alterations in the gut flora. FODMAPs are not the cause of irritable bowel syndrome nor other functional gastrointestinal disorders, but rather a person develops symptoms when the underlying bowel response is exaggerated or abnormal.

Fructose malabsorption and lactose intolerance may produce IBS symptoms through the same mechanism but, unlike with other FODMAPs, poor absorption of fructose is found in only a minority. Lactose intolerance is found in a majority of adults with the exception of certain geographic populations, notably those of European descent.

Follow us on:
http://www.facebook.com/getcandorapp

Related Posts

low fodmap protein top 10

Our users’ top 10 favorite low FODMAP protein

To see the full list, check out the Candor Health app.

fructose malabsorption

What foods should be avoided by people with fructose malabsorption?

Foods that should be avoided by people with fructose malabsorption include: Foods and beverages containing greater than 0.5 g fructose in excess of glucose per 100 g…

fodmaps role in gluten sensitivity

FODMAPs role in non-celiac gluten sensitivity

FODMAPs that are present in gluten-containing grains have been identified as a possible cause of gastrointestinal symptoms in people with non-celiac gluten sensitivity, in place of, or…

fodmaps intestinal absorption

FODMAPs and intestinal absorption

Some FODMAPs, such as fructose, are readily absorbed in the small intestine of humans via GLUT receptors. Absorption thus depends on the appropriate expression and delivery of…

History of Low-FODMAP Diet

History of Low-FODMAP Diet

The basis of many functional gastrointestinal disorders (FGIDs) is distension of the intestinal lumen. Such luminal distension may induce pain, a sensation of bloating, abdominal distension and…

Low-FODMAP: Key Takeaways and Considerations

Low-FODMAP: Key Considerations and Takeaways

What is a Low-FODMAP Diet? A low-FODMAP diet consists of the global restriction of all fermentable carbohydrates (FODMAPs), that is recommended only for a short time. A…

Leave a Reply

Your email address will not be published.