Study reveals real number of daily farts in healthy adults
The occurrence of intestinal gas, or flatulence, in healthy adults has been the subject of a new, in-depth study carried out by researchers at the University of Maryland, in the United States. The team decided to explore this question not just out of curiosity, but because of its scientific relevance to understanding gut health.
The volume and constancy of gas elimination provide important information about how bacteria in the intestine process the carbohydrates that remain after digestion. With the new data of 32 daily emissions, doctors now have a more accurate reference value to interpret microbial activity, potentially aiding in future diagnoses.
Until then, obtaining reliable data on this bodily function represented a challenge, as health professionals depended on patients’ memory and reports, which could result in inaccurate counts.
The major innovation of the research is the creation of a hydrogen “sensor” that is discreetly integrated into underwear, functioning in a similar way to a continuous glucose monitor, but with a focus on detecting gases. The device demonstrated an impressive 94.7% accuracy in identifying emissions produced by the gut microbiome.
Preliminary results indicate that healthy adults release an average of 32 gases per day, a number that more than doubles the average of 14 previously recorded in the medical literature.
However, the research observed considerable individual variation, with some participants recording just four daily emissions, while others reached 59.
Based on these findings, scientists classified individuals into three distinct categories:
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- “Zen digesters”, which consume large amounts of fiber (between 25 and 38 grams per day) and produce very little gas, contribute to understanding the adaptation of the microbiome to diets rich in fiber.
- The “hydrogen hyperproducers”, whose cases may reveal the mechanisms behind excessive flatulence.
- “Normal people”, who are located at an intermediate level between the two previous groups.
The initial phases of the study involved the participation of 19 to 38 adults in the United States, who wore the hydrogen sensor for a period of one week.
The research team now plans to expand the project, recruiting as many volunteers as possible to compile the first “human fart atlas”, which for now is restricted to American territory.
The main objective is to establish a reference level for flatulence, something that can be used in health assessments in a similar way to cholesterol or blood glucose levels.
Public interest in the research was so strong that registration for new volunteers was temporarily suspended, although it is still possible to join a waiting list.
It will still be necessary to verify whether a larger and more diverse sample of participants will confirm the initial results and when an initiative of such magnitude can be implemented in other regions, such as Brazil.
