The American Cancer Society (ACS) publishes a report on the relationship between diet, nutrition and physical activity and cancer prevention every five years as a guide to the general public for scientific knowledge, communication among health agencies and community groups, and the development of relevant policy guidelines. Breast cancer: The most common tumor among women in the United States and the second leading cause of death among women, second only to lung cancer. Postmenopausal women who are overweight have a significantly increased risk of developing breast cancer. This is associated with excess fat leading to high levels of estrogen in the blood. Excessive alcohol consumption and inadequate intake of folic acid also increase the risk of breast cancer. Physical activity can reduce this risk. 2, colon and rectal cancer: in the United States due to the total number of cancer deaths in the second place. Obesity is directly related to it, and it is especially significant in men. Large intake of vegetables and fruits and coarse fiber cereals, reduce the intake of red meat and processed meat, appropriate intake of vitamin D and calcium, while strengthening daily physical exercise can reduce the risk of its occurrence. In addition, regular screening, timely detection and removal of intestinal adenomas (precancerous lesions) are also crucial. 3. Lung cancer: the number one cause of death due to cancer in the United States. More than 85% of the cases are related to tobacco. Quitting smoking and consuming large amounts of vegetables and fruits can help reduce its occurrence. But be careful: excessive consumption of health food containing carotene and vitamin A will increase the risk factor of lung cancer in smokers. 4.Endometrial cancer: the 4th highest cancer incidence among women in the United States. Endometrial cancer is related to estrogen levels. The possibility of its occurrence can be reduced by exercising a lot, increasing the intake of vegetables, fruits, coarse fiber foods and legumes, and maintaining a healthy weight. 5.Kidney cancer: accounts for 3% of cancer incidence and death in men and 2% in women. Directly related factors are obesity and smoking. Therefore, it is especially important to quit smoking and maintain a healthy weight. 6. Pancreatic cancer: the 4th leading cause of cancer death in the United States. Smoking, type 2 diabetes, excessive consumption of red meat and lack of physical activity are highly related to it. 7.Cancer of the upper respiratory and digestive tracts: Alcohol abuse and smoking significantly increase the likelihood of oral cancer, throat cancer and esophageal cancer. Burning of the esophagus due to overheated diet can lead to chronic inflammation of the esophagus and eventually deteriorate into esophageal cancer. Changing bad eating habits, quitting smoking and alcohol, reducing weight and eating more fresh vegetables and fruits can help to reduce the risk of occurrence. 8.Prostate cancer: the most common cancer among American men. Eating more tomatoes, cauliflower, beans and fish can help reduce the risk of its occurrence. The protective effects of vitamin E and selenium and the corresponding complementary health food are not yet conclusive. Excessive calcium intake is associated with highly malignant prostate cancer, so excessive calcium intake or calcium supplementation is not recommended. In addition, statistics found that overweight and obese prostate cancer patients have poor treatment effect. 9.Stomach cancer: It is the 4th most common cancer and the second most deadly cancer in the world. Stomach cancer is mainly caused by chronic gastritis and gastric ulcer due to excessive intake of pickled foods and H. pylori infection. 10.Bladder cancer: It is related to smoking and certain chemical substances. Data show that the consumption of large amounts of vegetables and fruits and drinking a lot of water can help reduce the risk of its occurrence. Meanwhile, ovarian cancer, as well as other malignancies such as brain tumors, lymphomas and leukemia, have not been found to have significant correlation with nutrition, diet and weight.