Why Do People Pass Gas?

After digestion and absorption of food by the stomach and intestine, the extra food goes into the large intestine to be excreted from the body. There are a lot of colon bacilli in the large intestine that five on the residues of food. Colon bacilli cause the food residues to ferment. During the process of fermenting, some gas is produced, which fills the large intestine. The intestine excretes the gas. That is why people pass gas. Passing gas is a normal physiological phenomenon. Sometimes when people eat food which is difficult to digest, the fermenting process takes longer. In those cases, more gas is produced. Therefore, people pass gas more frequently.