What are FODMAPs?
FODMAPs are small sugars and fibres (aka. carbohydrates) found in some of the foods we commonly eat. They are often poorly absorbed and easily fermented by the bacteria in the gut (thus the name fermentable). They are like fast food for the bacteria in our gut.
Saccharide means sugar
Oligo = a few sugars joined together
Di = two sugars joined together
Mono = one sugar
Polyols are sugars with a little alcohol unit attached (not to be confused with alcoholic drinks)
Why do these Sugars Cause a Problem?
These poorly absorbed sugars cause IBS symptoms in two ways
1: THEY ATTRACT WATER INTO THE GUT.
The small sugars attract water into the gut, which increases the total volume and, which then stretches the gut wall.
2: RAPID FERMENTATION
Bacteria in the gut ferment the small sugars and this fermentation produces gas, which again stretches the gut wall.
Symptoms of IBS
How does this lead to the symptoms of IBS?
The Combined Effect of FODMAP Foods
These small sugars can also have a combined effect, which is why the amount of each FODMAP that is eaten with each meal is important. We’ve got you covered though, portions sizes are part of the phase 2 reintroduction.