Ans: When it comes to intestinal gas, there could be two different reasons for the body to produce it in the first place. One is from swallowing air and the other is with the help of the bacterial action that happens inside the body. When you swallow air, the body is absorbing gases such as oxygen, nitrogen, as well as carbon dioxide in the process. These gases are some of the main components of the intestinal gas that is found in the body. Apart from that, the bacteria present in the small intestine help in the digestion of food and hence lead to the production of gases such as methane and others. These gases join together to form human gas in the first place.