How much we fart in a day, according to science — and which age group is the gassiest - New York Post

What the report says

The New York Post reported on a large Australian flatulence-tracking study that asked 6,400 people to record gas-passing episodes through a smartphone app called “Chart Your Fart.” The project logged 360,192 entries and was designed to help researchers better understand what counts as typical or unusually frequent flatulence, a bodily function that can provide clues about digestion and gut health.

According to the Post’s account, participants were age 14 and older, while people who had recently made major dietary changes were excluded because diet shifts could temporarily alter gas patterns. The study found an average of about five farts per day, with a median of 3.8, suggesting a smaller group of especially gassy participants raised the overall average. Most people in the study, 79.3%, recorded between two and seven episodes daily.

The Post reported modest differences by sex and age. Men averaged 5.2 farts a day, compared with 4.8 for women. The youngest group, ages 14 to 25, had the lowest average at 4.4, while people ages 26 to 45 were the gassiest at just over five per day. The 46-to-65 group was close behind at five daily, and researchers said they lacked enough data for those over 65.

The article said gas events tended to rise through the day and peak after dinner, with smaller increases around breakfast and lunch. The findings matter because earlier estimates have varied widely, and researchers say clearer baselines could help distinguish normal digestion from changes linked to diet, food intolerance or health conditions.