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Conclusions Patients complaining of flatulence have a poor tolerance of intestinal gas, which is associated with instability of the microbial ecosystem.[1]

Significance of this study

What is already known on this subject?

  • Some patients specifically complain of excessive evacuation of gas per anus.
  • Intestinal gas content depends by-and-large on gas production by bacterial fermentation of unabsorbed substrates.
  • Diet influences anal gas evacuation and gut microbial composition.
  • A proportion of patients complaining of flatulence have increased number of gas evacuations, but the net volume of gas evacuated is within the normal range.
  • Flatulence is associated with abdominal symptoms.
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