It is difficult to have both fish and bear’s paw, and deliciousness and health sometimes come into conflict. High-salt foods such as pickles and salted fish are representative of this. There is an inescapable relationship between the occurrence of stomach cancer and the large amount of long-term consumption of cured meat, bacon, barbecue-type foods, as well as staying up late for late-night snacking. Frequent consumption of pickled foods is a high risk factor for the occurrence of stomach cancer Stomach cancer can also be said to be a typical lifestyle disease, and what and how to eat are closely related to the development of stomach cancer. It is known that long-term consumption of pickles, salted vegetables, salted fish, salted meat and other salted foods can easily induce stomach cancer, mainly because of the large amount of nitrite in such foods. Nitrite reacts with amino acids and low-level amines in food to form carcinogenic nitrosamines and nitrosamides, thus increasing the risk of stomach cancer. The high incidence of stomach cancer among people in northwest China is not unrelated to their love of cured meat and pickles. The incidence of stomach cancer in Hunan, where smoked meat is abundant, is also not low, mainly related to the contamination of food by a large amount of polycyclic aromatic hydrocarbons produced during the incomplete combustion of fuel during the production of smoked and grilled food, many of which are carcinogenic in different strengths and weaknesses. In Guangdong, although the overall incidence of stomach cancer is not high, the incidence of stomach cancer is more prominent in the eastern part of Chaoshan because of the habit of eating salted fish and pickled vegetables. However, the presence of carcinogens in food does not mean that you will get cancer if you eat it. People living in the same environment are not consistent in terms of the amount of carcinogens they receive, their susceptibility to cancer and their immune function. However, it is necessary to promote healthy living and eating habits, otherwise, it is too late to mend the situation after the body collapses. ”According to the World Health Organization, the incidence of gastric cancer in China is the second highest in the world after Japan, and the number of patients accounts for 42% of the total number of gastric cancer patients worldwide. However, recent clinical research data show that the incidence rate of gastric cancer has been showing a younger trend year by year. As young people do not pay enough attention to gastric cancer, late diagnosis, late detection and higher malignant degree, the treatment effect of gastric cancer in young people is poor, the prognosis is relatively worse and the survival time of patients is shorter. gastric cancer in people under 40 years old is related to fast pace of life and poor dietary habits. The clinical symptoms of early gastric cancer are no different from those of benign diseases such as gastritis and gastric ulcer. As a doctor, the most worrying thing is that young people who are uncomfortable with their stomachs often carry the symptoms because they are busy at work or because they can buy their own medicine to relieve the discomfort, but ignore the possible disease “alarm” and do not go to the hospital for consultation. This can easily cover up the initial symptoms of stomach cancer and delay the condition and treatment. The prevention of H. pylori should be removed in time, and the occurrence of gastric cancer is not something that happens overnight. The occurrence of gastric cancer is not a sudden transformation of normal gastric mucosal epithelial cells into cancer cells, but a gradual process. Before developing into gastric cancer, it often goes through a rather long process of precancerous changes. For example, chronic atrophic gastritis, gastric ulcer, gastric polyp, etc. are the “precancerous lesions” of gastric cancer, which will significantly increase the risk of gastric cancer.