The occurrence of bowel cancer has affected many people, but the problem is that we have not yet found out the exact cause of bowel cancer, but people are convinced that its occurrence is related to lifestyle, especially to dietary habits. So, what are the dietary taboos to prevent bowel cancer? Avoid spicy food Bowel cancer patients are forbidden to eat spicy food, such as chili and pepper, which have stimulating effect on anus and must not be eaten. After colon cancer surgery, patients should pay attention to strengthen the care and diet nutrition after surgery to promote the recovery of patients’ body. In the initial stage when they cannot eat normally, intravenous rehydration should be the main focus. After being able to eat, the diet should start with liquid food, gradually transition to semi-liquid food and soft food, and then increase other diets after the gastrointestinal tract gradually adapts. Avoid greasy food Be careful not to eat too much fat, but to reasonably match sugar, fat, protein, minerals, vitamins and other foods, and have cereals, lean meat, fish, eggs, milk, all kinds of vegetables and soy products every day, and not too much of each kind. Avoid excessive energy intake Energy intake is related to the occurrence of colorectal cancer. Total energy intake is associated with the risk of colorectal cancer, regardless of whether the energy intake is protein, fat or carbohydrate. Reducing energy intake has the potential to reduce the incidence of colorectal cancer. Change the habit of eating mainly meat and high-protein foods. Eat less high-fat foods, especially to control the intake of animal fats. Because high fat and high animal protein diet stimulates bile secretion on one hand, the amount of bile in the intestine increases, and bile mainly contains bile acid and cholesterol, so the content of bile acid and cholesterol in feces increases. On the other hand, such diet can lead to the active growth of Clostridium perfringens in the contents of the lumen of the large intestine (commonly known as fecal juice), which is an anaerobic bacterium that contains abundant dehydroxylase, which acts on bile acids and cholesterol to form non-saturated polycyclic hydrocarbons that can cause cancer. Therefore, the carcinogenic substances produced by high-fat, high-protein and low-fiber diets, which act on the colon for a long time, will certainly lead to an increase in the incidence of colorectal cancer.