INTESTINAL GAS
When too much gas accumulates in the intestine, it can cause more than discomfort. Pockets of gas anywhere in the gut can trigger a sympathetic nervous system response—a stress reaction. Small amounts of gas in the gut are normal. But larger volumes of gas are not, and usually indicate something is wrong with your diet or even the way you’re eating. Here are the four most common causes of intestinal gas:
The most common causes are starchy carbohydrates—bread, cereal, the many products made from wheat flour—and sugar. This includes milk sugar (lactose) from dairy products.
Another common cause of intestinal gas is swallowing air. This occurs during eating and drinking liquids, especially water, as people tend to drink several ounces or more at one time. Drink liquids slowly to avoid swallowing air and, most importantly, keep your head tilted forward—not backward—to avoid swallowing air. In addition, chewing food and not rushing meals will help you avoid swallowing large amounts of air. Once air is swallowed, if it doesn’t come back up soon as a burp, most of it must travel through the gut and come out the other end.
Stomach dysfunction is a common cause of gas. This is typically due to low levels of hydrochloric acid, as discussed above.
Large intestine dysfunction—often due to the wrong bacteria residing in the gut (discussed below) may cause excess gas. This can also cause bad breath as some of this gas is absorbed into the blood and released through the lungs.
Other foods that promote gas include chewing gum, especially the “sugar-free” products containing sorbitol and other alcohol sugars. In addition, some individuals are sensitive to the natural fruit sugar fructose found in fruits, and especially high in fruit juice.
Drugs to reduce gas don’t work. The American College of Gastroenterology states, “Despite the many commercials and advertisements for medications which reduce gas pains and bloating, very few have any proven scientific value.” If you have excess gas, addressing the causes as discussed here can usually significantly reduce the problem.

The villis’ function is vital for good nutrient absorption. Stress, poor digestion, and not eating (dieting, fasting, hospitalization) can significantly impair their function. In addition, the villi use an important amino acid, L-glutamine, as their energy source for the absorptive mechanism to function. Without adequate glutamine, absorption of nutrients can be impaired. Glutamine is a common amino acid found in meats and other proteins, but it is easily destroyed by heat.

Once absorbed into the blood, nutrients are carried to the liver for processing. The liver acts like a manufacturing plant and distribution center. Some nutrients rely on others for their utilization. For example, calcium requires certain fats to be carried into bones and muscles. Other nutrients, such as thiamin, can go directly into cells to help generate energy.

Digestion of macronutrients—carbohydrates, fats, and proteins—into their basic components of glucose, small fat particles, and amino acids, respectively, provides the raw materials for our energy needs. Once absorbed, glucose is acted upon by insulin and either used immediately for energy, stored as fat, or stored as glycogen. Fats are sent to storage until called for by the aerobic muscles for use as energy, and even amino acids are used to produce small amounts of energy.

广告：个人专属 VPN，独立 IP，无限流量，多机房切换，还可以屏蔽广告和恶意软件，每月最低仅 5 美元