Relationship: Irritable Bowel Syndrome and fructooligosaccharides (FOS)

Evidence supporting the use of: Fructooligosaccharides (FOS)
For the health condition: Irritable Bowel Syndrome

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Source of validity: Scientific
Rating (out of 5): 2

Fructooligosaccharides (FOS) are short-chain prebiotic fibers commonly found in foods such as chicory root, onions, and garlic, as well as in dietary supplements. Their use for Irritable Bowel Syndrome (IBS) is supported by some scientific rationale, although the quality and consistency of evidence are moderate at best. FOS is believed to promote the growth of beneficial gut bacteria, such as Bifidobacteria and Lactobacilli, which can help modulate gut microbiota composition and potentially reduce IBS symptoms. Several small randomized controlled trials (RCTs) and observational studies have explored the effects of FOS in IBS patients. Some studies suggest that low doses of FOS can improve stool consistency and frequency, as well as reduce bloating and abdominal discomfort. However, other research indicates that higher doses of FOS may actually worsen symptoms such as gas, bloating, and abdominal pain, particularly in individuals with IBS who are sensitive to fermentable carbohydrates (FODMAPs). As a result, FOS is sometimes excluded from low-FODMAP diets, a dietary approach with strong evidence for IBS symptom management. Overall, while there is a scientific rationale and some positive findings for FOS in IBS, the evidence is mixed, and its use should be individualized. More large-scale, high-quality trials are needed to determine the optimal dose and patient population for FOS supplementation in IBS.

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Evidence supporting the use of: Fructooligosaccharides (FOS)
For the health condition: Irritable Bowel Syndrome

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Synopsis

Other ingredients used for Irritable Bowel Syndrome

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Evidence supporting the use of: Fructooligosaccharides (FOS)For the health condition: Irritable Bowel Syndrome

Table of Contents

Synopsis

Other ingredients used for Irritable Bowel Syndrome

Other health conditions supported by fructooligosaccharides (FOS)

Products containing fructooligosaccharides (FOS)

Evidence supporting the use of: Fructooligosaccharides (FOS)
For the health condition: Irritable Bowel Syndrome