Australian Study Sets 2-to-7 Daily Fart Baseline, With Men Averaging 5.2

Q: Is the 'fart gap' between men and women a result of biology or simply social pressure?

The evidence so far suggests it is likely a mix of both biology and social pressure, and this study cannot cleanly separate the two. The Australian study found only a small difference: men reported an average of 5.2 episodes a day versus 4.8 for women. Because the data came from self-logging in a “Chart Your Fart” app, reporting behavior matters. That makes social norms a plausible factor. Experts cited in the coverage said men may feel less stigma about passing gas openly, while women may be more likely to suppress it or underreport it. There is also a reasonable biological explanation. Dr. Emily Brindal noted that men generally eat more food, which could lead to more gas production. More intake can mean more fermentation in the gut and more swallowed air, both of which can increase flatulence. But the study did not directly test diet, gut microbiome differences, hormone effects, or anatomy by sex, so it cannot prove a biological cause. The broader gut-health material reinforces that gas production varies widely by diet, age, anatomy, and individual microbiome. That makes any single explanation too simple. It also highlights a larger problem: flatulence research still relies heavily on self-reporting, which can blur the line between actual gas production and what people notice or admit. So the “fart gap” is real in this dataset, but it is small and not definitively explained. At this stage, social pressure and behavioral differences are at least as plausible as biology.

3 articles · Updated · Men's Health · Jun 10

6,416 Australian adults logged 360,192 gas events in an app-based study, giving researchers one of the clearest benchmarks yet for normal fart frequency.
Most participants passed gas two to seven times a day; men averaged 5.2 episodes, women 4.8, and people aged 14 to 25 reported fewer than older groups.
Farting peaked in the morning, after lunch and near bedtime, patterns the researchers said could help people track links between diet, timing and symptoms.
Doctors said the baseline could aid IBS and dietary-intervention research and reassure patients, while warning that gas paired with weight loss, bleeding or worsening pain warrants medical evaluation.