Definition. Flatulence is the accumulation of gas (air) in the GI tract. Gas exits the body when people either burp or pass gas (fart). Though sometimes embarrassing, everyone experiences gas at some point or another.
Cause. Gas is generally caused by swallowing air, or when certain foods 
breakdown in the intestine. Swallowing a small amount of air when you eat or drink is normal. Activities such as eating or drinking too quickly, smoking, chewing gum, or drinking carbonated/fizzy drinks may cause you to swallow more air than usual.
Certain food groups may also cause someone to experience flatulence. Foods that may cause gas include beans; vegetables such as broccoli and cabbage; fruits such as apples, pears, and peaches; whole grains; dairy products; and pre-packaged foods.
Symptoms. The most common symptoms of gas include burping, passing gas, bloating, and abdominal or chest pain.
Identifying triggers. The best way to find the cause of your gas is to keep a food diary. Document what you eat and drink, and then how often you burp, pass gas, or have other symptoms afterwards.
Treatment. The best way to treat your flatulence is to identify your food triggers and then avoid them. Alpha-galactosidase (Beano) may help reduce gas when you eat beans, vegetables, and whole grains. Simethicone (Gas-X) may relieve bloating and abdominal pain or discomfort caused by excess gas. If you are lactose-intolerant, finding lactose-free dairy products should be beneficial. Lactase tablets or liquid drops can help digest regular dairy products when lactose-free products aren’t available.
