Generally speaking, there is 100 ml gas in the digestive tract of healthy people, and the amount of fart discharged by adult men every day is 100 ~ 2800 ml, which fluctuates considerably. This is because different people's diets vary greatly, and undigested potatoes and beans will increase the amount of waste gas by 2- 10 times. The amount of fart in Europe and America is very small, because the intake of dietary fiber is relatively small. On the contrary, the more meat you eat, the more smelly your fart is.
In order to avoid the generation of harmful gases as much as possible, we must first improve our diet and life. People who are used to eating too much animal protein and fat in their diet should switch to foods rich in dietary fiber, such as root vegetables, potatoes, beans, seaweed, etc., to improve the bacterial environment in the intestines. When beneficial bacteria such as lactic acid bacteria increase, waste gas is easy to be discharged. On the contrary, when harmful bacteria increase, gas is not easy to be discharged.
Extended data:
The smell and yield of fart have a lot to do with food.
When the protein content of food is high (such as meat), the contents of hydrogen sulfide, indole and fecal odor in fart increase, and the fart has obvious odor at this time; When the starch content of food is high (such as potatoes), the carbon dioxide content in fart increases, and the amount of fart increases obviously at this time. Because the increase of carbon dioxide is obviously greater than that of hydrogen sulfide, indole and dung odor, and when the air pressure increases, the airflow speed of fart increases, and the sound of fart becomes louder, while carbon dioxide has no smell, so there are sayings that "fart is not smelly, fart is not smelly" and "fart is not stuffy".
Some foods can increase the amount of fart or change the smell because they contain special substances, such as:
Sweet potato: contains gasifying enzyme, which is easy to produce a large amount of carbon dioxide gas under the action of gastric acid. White radish can promote gastric juice secretion, regulate gastrointestinal function and promote intestinal peristalsis. Its components amylase and lignin can regulate intestinal gas, so it will fart when eaten raw, and it has a special smell, commonly known as "radish fart". Onion, leek and garlic: It contains irritating substances, and excessive consumption will make the fart taste like onion, leek and garlic. Beans such as soybeans: contain a lot of oligosaccharides and protein, which can produce a lot of gases and malodorous substances, so the fart is much and smelly.
References:
Baidu encyclopedia-fart