Why do we fart? 10 facts about flatulence

In fact, according to some research, the average person passes gas about 12–25 times a day. In this article, learn about why people produce gas and discover some other fascinating facts.

Why do we fart?

The body produces intestinal gas as part of the process of digestion. Once this gas is inside the body, it needs to be released somehow. It is usually expelled through the anus as flatulence or out of the mouth as a burp.

Some intestinal gas comes from the air that people swallow when they are eating, chewing gum, drinking through a straw, or smoking.

Oxygen, nitrogen, and carbon dioxide are the primary external gases found inside the body. They make up what is called exogenous air.

Intestinal gas is produced within the body when bacteria in the colon break down food. This is called endogenous gas.

Although farting is not typically a conversation starter, there is plenty to learn about it. Facts about flatulence include:


Although farting is as natural as eating or breathing, it can still cause embarrassment. Even people whose level of intestinal gas is well within the normal range may try to limit how much gas they pass.

Fortunately, studies have found that adjusting a person’s diet can result in fewer farts.

Over-the-counter commercial enzyme products, such as Beano, can also reduce the body’s production of intestinal gas. However, these products are not usually suitable for long-term use.

For a more natural approach, a person can eat smaller meals more frequently and drink peppermint tea to relieve bloating and flatulence.

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