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[B] The following conclusions are supported by fair evidence:
Data from several short-term (<6 weeks) controlled clinical trials suggests that a low FODMAP diet can reduce gastrointestinal symptoms (i.e. abdominal pain, bloating, excessive flatus), compared to no dietary intervention in up to 75% of individuals with IBS. Beneficial effects of the low FODMAP diet on objective fecal measurements are modest or not evident (e.g. fecal frequency, consistency and weight), and some evidence suggests