The human body secretes a liter of gas per day Bashny.Net

One liter - approximately the amount of gas, on average, is secreted by human body daily. The composition of these gases can vary considerably depending on the kind of food you have used what air breathed in during the day, depending on the type of bacteria in your intestines and depending on how long you press the gases inside their body. The smell of the gas is formed with minute amounts of constituents containing sulfur and nitrogen, which are formed in the body due to not fully digested food and due to bacteria living in the rectum. Sulfur compounds is mainly hydrogen sulfide (gas which smell like rotten eggs) and mercaptan (organic sulfur compound in which oxygen is replaced by sulfur). Nitrogen compounds are for the most part, skatole and indole. For food that is rich in sulfur, refers cabbage, egg and meat. It is because of this food "human" gas can have a pungent smell. It is noteworthy that beans and legumes result in the production of large amounts of gas, but the smell was not as sharp. Another noteworthy fact is that the pressure which acts on our intestines from zanakaplivayuschegosya gas therein, sometimes twice greater than the pressure of air injected into the usual automotive camera!

via factroom.ru