These outpouchings or pockets do not cause symptoms in most instances. This breaking down occurs as a result of the attack by the bacteria present in colon. Diet high in certain kinds of carbohydrates as well fiber in the diet are excellent sources of gas and consequently flatus production. Different foods may produce different amounts of gas. The frequency of flatus is variable and so is the amount of gas passed.
Some people pass small amounts frequently.
Others may pass large amounts of gas but fewer number of times. Frequently, the complaint of excess gas implies the foul odor with its associated social embarrassment and not so much as the amount. It is also possible that some people especially those with irritable bowel syndrome are more sensitive to the presence of gas. They sense more distress in response to the amounts of gas that are not bothersome to others. The amount of gas produced is not significantly changed as we grow older.