Gas, also called flatulence or "farting," results from passing intestinal gas. While the sound and smell can cause us to be the "butt" of jokes, passing gas is common and harmless. Eating beans, fruits, vegetables, and other foods high in fiber can cause gas, as can drinking carbonated beverages such as beer and soda. If you are lactose intolerant, consuming dairy products may cause you to have more gas. If excessive gas is a concern for you, pay attention to foods that trigger more gas, and consult your doctor if symptoms do not resolve when you eliminate trigger foods.