Researchers have developed a “smart underwear” prototype capable of accurately measuring the frequency of flatulence, a previously unquantified aspect of human physiology. The innovation stems from an attempt to study gut microbes, and could open new avenues for understanding digestive health and the impact of diet.
The project began with researchers at the University of Maryland attempting to measure hydrogen production by gut microbes using a sensor in an oxygen-free environment. When that approach proved unsuccessful, a team member had an unexpected breakthrough. “We took the sensor out of the chamber,” one researcher explained, “and someone jokingly put the device in their pants and passed gas – the signal was particularly strong.”
This led to the development of the “smart underwear,” featuring a coin-sized sensor embedded within the garment. The findings of the study, published in ‘Biosensors and Bioelectronics’, detail the use of the device to monitor gas emissions.
In testing, volunteers were found to pass gas an average of 32 times per day. Researchers also discovered that consuming high-fiber gummy candies increased gas production by approximately 95 percent.
Now, the team, led by Brantley Hall, is investigating how often people typically pass gas and whether this varies based on age, diet, and other factors. According to researchers, no one has previously established a scientific baseline for normal flatulence frequency.
“We grasp what a normal heart rate is, we know what a normal cholesterol level is… But when you go to the doctor, they don’t know what a normal fart count is,” Hall stated. “Even if you advise them you fart 50 times a day, they don’t have a reference point to compare it to.”
‘Interest in the Research is High’
The research team’s call for volunteers has garnered over 3,500 responses, and recruitment is currently paused. Hall noted, “You might think people wouldn’t want to talk about this, but everyone is eager to participate. People are excited to measure their farts.”
