Commonly used stomach-strengthening foods include pork tripe, chicken kidney, mutton, etc., and compatible Chinese medicines include tremella, spring sand, dried tangerine peel, pepper, Smilax glabra, lentils, etc. In addition, eating more coarse grains and fiber-rich foods is also beneficial to strengthening the stomach. Stewed pork belly with pepper, stewed turtle with Smilax glabra and stewed chinese forest frog with aloe all have the effects of dispelling cold and warming stomach. He Yicheng, director of the family medicine department of Shutian Clinic, may have flatulence, diarrhea or constipation caused by harmful bacteria and toxins in the intestine. Some fragrant fruits, vegetables and flowers, such as lotus guava and roses, contain clove oil, which may have the effect of removing bad bacteria in the intestine and further regulating the function of the stomach. A mouse experiment showed that clove oil can show antioxidant effect in the intestine, and there was no change on the first 15 day, but it showed obvious antioxidant effect on the 90 th day, and it began to have the function of clearing intestinal endotoxin. Apples generally have antidiarrheal effect after eating because they contain pectin, but some people have diarrhea after eating them. Some people suffer from irritable bowel syndrome, and sometimes eating apples or pears will cause diarrhea, which may be due to the inability to fully absorb the sugar in apples and pears, and sometimes eating apples can improve constipation. A study pointed out that morphine induced constipation in mice, and then apple fiber could improve constipation, which may be due to the increase of short-chain fatty acids to stimulate intestinal peristalsis. Natural foods such as apples usually do not necessarily cause constipation or diarrhea, but have the function of regulating gastrointestinal peristalsis. Sulfide contained in cauliflower or cabbage can inhibit Helicobacter pylori, because Helicobacter pylori is one of the causes of gastric ulcer, and cauliflower or cabbage may have the function of preventing gastric ulcer. A study pointed out that this sulfide can inhibit the gastric cancer caused by carcinogens in mice, and this protective effect comes from the role of antioxidation and decomposition of carcinogens. Sometimes it is effective to eat bananas when you have a stomachache. Some studies have pointed out that bananas can increase the protective factor of gastric mucosa and help gastric ulcer. In vitro, it is found that banana extract has antioxidant and anti-ulcer effects on gastric mucosa twice a day for five days, but bananas have no inhibitory effect on Helicobacter pylori. Ginger is used in traditional medicine to stop vomiting. A study of 40 people pointed out that ginger can inhibit dizziness caused by rotating chair by half. If ginger is not used, no one can support it for 6 minutes. If ginger is used, half of the people can support it. This antiemetic effect may act on the brain. In the study of 80 new sailors, one gram of ginger can also reduce the symptoms of seasickness, and the effect can reach four hours. Taking one gram of ginger powder every day also has some effect on vomiting during pregnancy, but it is found that ginger may cause mutation in biological experiments. Whether excessive ginger will harm the fetus should be studied in more detail, and a Danish study pointed out that pregnant rats can eat one gram of ginger extract every kilogram of body weight every day without fetal malformation. Some natural plant fibers are scientifically extracted and used to treat constipation. For example, plantain seeds can absorb water and help defecate, and the gum of Chinese parasol tree has a good laxative effect. These have been made into medicines for prescription use. Coriander for seasoning, that is, coriander, may be helpful for constipation. Animal studies have found that coriander can inhibit the absorption of salt and water in the large intestine, making the feces softer and easier to excrete. Traditional medicine believes that eating greasy food and then eating radish can relieve oil, and some studies also support this view. High-fat food may cause damage to the large intestine, which may lead to dysfunction and diarrhea. In one study, rats fed with high-fat food found that mucosal cells were damaged, cells secreting protective mucus decreased, and inflammatory cells increased. These phenomena were improved after feeding radish.