what cause bloating and gas
Mechanism of Gas and Flatulence. Flatulence is a voluntary or involuntary expulsion of gas through the anus commonly referred to as passing gas or âfartingâ. Gas produced by the breakdown of food within the gastrointestinal tract may cause bloating and discomfort which is relieved upon passing flatus (âfartâ). Digestion is a physical and chemical process that produces byproducts, including gas that is passed out as flatus.
Most cases of stomach bloating are due to improper diet. Gas occurs because of the bacteria in the colon and is a by-product of soluble fiber digestion. Inadequate or irregular intake of fiber and water will cause a person to experience bloating or constipation. The most common natural sources of fiber include fruits and vegetables as well as wheat or oat bran.