Terms Related to Gas:
Belching; Bloating; Farting; Flatulence

Symptoms & Signs
Gas or "intestinal gas" means different things to different people. It is the act of expelling gas from the stomach out through the mouth. The usual cause of belching is a inflated stomach caused by swallowed air. It's also generated by intestinal bacteria that produce carbon

dioxide and hydrogen (both odorless, by the way) in the course of breaking down carbohydrates and proteins in the food you eat. The inflation of the stomach causes abdominal discomfort, and the belching expels the air and relieves the discomfort. The common reasons for swallowing large amounts of air (aerophobia) are gulping food or drink too rapidly, anxiety, and carbonated beverages. Most people produce 1 to 3 pints of intestinal gas in their large intestines (colons) every24 hours and pass gas an average of 14 times a day. The carbon dioxide, hydrogen, and methane and other gases are produced by bacteria in the large intestine while they digest undigested food that reaches the large intestine. Although these gases are odorless, the bacteria also may produce small amounts of sulfur-containing gases that are foul-smelling. It is important to distinguish between increased flatulence (farting) and foul-smelling flatulence. Some food product that increase gas in stomach include legumes like; dried beans, soy beans, milk and milk products, vegetables like; cabbage, onions, cauliflower, potatoes, turnips, fruits like; apricots, apples, bananas, cereals and breads, fatty foods and carbonated beverages, etc.