A fart is also called flatulence or gas. Farts are caused by air or gases in the digestive tract that are expelled from the intestines. Air can be swallowed while eating, drinking and coughing. Drinking through a straw is commonly to blame for excess gas. Other gases are created when the body breaks down food. These gases could be methane, carbon dioxide or hydrogen.1‘What’s a Fart? (for Kids) - Nemours KidsHealth.’ Edited by KidsHealth Medical Experts, KidsHealth, The Nemours Foundation, kidshealth.org/en/kids/fart.html
People have many questions about farts and wonder what causes them. While it's a normal part of digestion, excessive gas can be caused by certain foods, activities and disorders.
Foods That Cause Gas
All foods have the potential to cause some gas or farting. This is because the gases responsible for farting are created naturally when foods are broken down by the digestive system. Foods containing a complex sugar, called raffinose, or lactose may cause extra farting.
Some foods may be responsible for creating more digestive gases than others. The carbonation in soda, seltzer water and certain alcoholic drinks introduces excessive air into the digestive system. Some people may find beans, dairy products and certain vegetables cause excessive farting. Examples of gas-causing vegetables may include brussels sprouts, cabbage, cauliflower, broccoli and asparagus.