[2] Similarity in symptoms means that patients with fructose malabsorption often fit the profile of those with irritable bowel syndrome.
[citation needed] Fructose malabsorption may cause gastrointestinal symptoms such as abdominal pain, bloating, flatulence or diarrhea.
[7] Fructose that has not been adequately absorbed is fermented by intestinal bacteria producing hydrogen, carbon dioxide, methane and short-chain fatty acids.
[10] Restricting dietary intake of free fructose and/or fructans may provide symptom relief in a high proportion of patients with functional gut disorders.
Nevertheless, some authors argue this test is not an appropriate diagnostic tool, because a negative result does not exclude a positive response to fructose restriction, implying a lack of sensitivity.
Dietary supplements of xylose isomerase may improve some symptoms of fructose malabsorption, although there is currently only a single scientific study available.
Researchers at Monash University in Australia developed dietary guidelines[19] for managing fructose malabsorption, particularly for individuals with IBS.
The following list of favorable foods was cited in the paper: "Fructose malabsorption and symptoms of Irritable Bowel Syndrome Guidelines for effective dietary management".
Though the touted health benefits may exist, people with fructose malabsorption will likely find no difference between these new breads and traditionally prepared breads in alleviating their symptoms because inulin is a fructan, and, again, consumption of fructans should be reduced dramatically in those with fructose malabsorption in an effort to appease symptoms.
[citation needed] Fructose and fructans are FODMAPs (fermentable oligo-, di- and mono-saccharides and polyols) known to cause gastrointestinal discomfort in susceptible individuals.