Intestinal gas is usually made of: Oxygen
Carbon Dioxide Methane
No one really wants to talk about intestinal gas, but we all experience it. Gas is, after all, a natural by-product of digestion.
There are generally two kinds of gas: upper digestive gas and lower digestive gas.
Upper gas tends to be produced by swallowing air during eating and drinking. We pass upper gas through the mouth in the form of burps. To limit this type of excess gas, try to slow down when you eat and drink, and limit gum chewing.
Lower digestive gas is a by-product of digestion and is due to the natural fermentation of foods in the intestinal tract. We expel lower gas as flatulence (or farts) via the anus.
The foods we eat have a big impact on the amount of lower gas our bodies produce. For example, carbohydrates (due to their higher sugar content) typically cause more gas than proteins and fats. And, of course, beans and eggs are notorious for creating extra gas.
Thankfully, we have natural, beneficial bacteria in our digestive systems to aid in modulating gas symptoms by: improving intestinal function, influencing how much gas is produced, and sometimes even “eating” gas.
Maintaining a good balance of these microorganisms in the body can thus discourage bothersome gas, bloating, and other digestive discomforts.22