 Average person farts 10-20 times a day. Here's how to tell what they mean. These might be a sign of too much fiber from foods like beans and broccoli. Aim for 25-29 grams of dietary fiber per day. If you're farting more than 20 times a day, it could be from eating too fast, drinking too much coffee, or that La Croix obsession. If your farts can clear a room of even the most polite company, you might not be absorbing carbs or have another gastro issue. These lucky breaks actually make up about 99% of all gas and are slipping out all day, every day from you and everyone around you.