In 2009, the incidence rate of gastric cancer in China was 37 cases per 100,000 people for men and 17 cases per 100,000 people for women. With 400,000 new cases and 300,000 deaths per year, gastric cancer is the third most common tumor in China. The prevalence and mortality rate of gastric cancer in China are more than twice of the world average, and about one Chinese dies of gastric cancer every 2 to 3 minutes. The risk of stomach cancer is 2.7 times higher for those infected with H. pylori than for those who are not infected, and 1.8 times higher for smokers than for non-smokers. According to experts, sharing meals and not paying attention to dietary hygiene and regularity increase the chance of being infected with such bacteria, which makes stomach cancer highly prevalent. Modern people’s irregular life, shared meals with smoked, heavy and spicy foods, as well as smoking and drinking, are the main culprits of gastric cancer. Those who are over 40 years old, especially those who are addicted to smoking and alcohol, often eat pickled food, or have gastric polyps and stomach surgery should have regular medical checkups for early detection and treatment. Treatment of gastric cancer Nowadays, the treatment of gastric cancer includes surgery, chemotherapy, radiotherapy, biological therapy and traditional Chinese medicine, which is summarized as multidisciplinary standardized treatment and comprehensive treatment. Among them, surgery is the main and primary treatment method, especially for early gastric cancer, surgery is the only way to cure it. For early to mid-stage gastric cancer, surgery is the only way to cure it. For advanced gastric cancer, especially those with metastasis, which cannot be removed by radical surgery, some palliative surgeries can be done, which are very important. Dietary guidance for gastric cancer 1. Eat less and more meals: Develop good eating habits, eat at regular time, eat regularly and quantitatively, and insist on eating less and more meals, with 5 to 6 meals per day as appropriate. The main food and side dishes should be soft and easy to digest food, never overeat. 2, eat more soft food and fish: the early postoperative period should be eaten in accordance with the order of water, liquid food, semi-fluid, soft food and general food. The liquid diet should be rice soup, egg soup, vegetable soup and lotus root powder, and foods that will induce intestinal flatulence should be avoided. The semi-liquid diet should be high in protein, high in calories, high in vitamins, low in fat, and fresh and easy to digest. The best source of animal protein is fish, because fish is not only rich in protein, the composition of amino acids and the ratio between each other are similar to the human body, the utilization rate of fish protein can reach 96%, the fat of fish contains high unsaturated fatty acids, and easy for the body to digest and absorb, so we encourage more fish, such as yellow croaker, carp, etc.