How Often Should You Fart? What a Massive Study of 360,000 Farts Reveals About Your Digestive Health

Australian researchers decided to tackle a question we’ve all wondered about but never really talked about seriously: how often do we actually pass gas? Using a smartphone app and 6,400 willing participants, they tracked over 360,000 farts to establish what’s considered normal. The results show the average person farts about 5 times daily, though the median sits at 3.8 times. This difference matters because it tells us that while most people cluster in a fairly narrow range, some folks are significantly gassier than the rest, pulling the average higher. Nearly 80 percent of people fall comfortably between 2 and 7 farts per day, so if you’re in that zone, your digestive system is working exactly as intended.

The study also revealed some interesting demographic patterns. Men fart slightly more than women on average (5.2 versus 4.8 times daily), and surprisingly, people in their late 20s through mid-40s are the gassiest age group. The youngest participants, ages 14 to 25, actually fart the least. Throughout the day, fart frequency follows a predictable pattern, peaking in the evening after dinner when we’ve had time to eat and digest a full day’s worth of food. This timing aligns with what most people observe in their own experience.

Now for the practical takeaway: while farts are totally normal, excessive gas can actually signal something worth paying attention to. Lactose intolerance, gluten sensitivity, diabetes, thyroid problems, and bacterial imbalances in the small intestine can all show up as extra gas production. Lifestyle factors matter too—smoking, chewing gum, carbonated drinks, and high-fiber foods like beans and broccoli all increase flatulence. If you find yourself consistently way above that 2-7 range, it might be worth examining your diet or talking to your doctor about possible underlying issues. Have you noticed whether your gas patterns match what this research suggests, or are you an outlier?