The World Cancer Research Fund (WCRF) has made a number of recommendations for cancer prevention in terms of diet and nutrition that have a broad scientific basis. 1. Organize your diet properly. Plant foods (such as vegetables, fruits, cereals and legumes) should account for more than two-thirds of the total daily diet, with more than 5 kinds of varieties. 2, eat 600 to 800 grams of various cereals, legumes, plant-based roots and tubers every day. The less processed plant-based food, the better. 3, eat red meat (i.e., beef, lamb, pork) should not exceed 90 grams per day, it is best to eat fish and poultry to replace red meat. 4, eat less high-fat food, especially animal fat. Choose to eat appropriate vegetable oil and control the amount. 5, eat less salt. Eat less preserved food, the daily consumption of salt per person should be less than 6 grams. Eat less refined sugar and sweets. 6, do not advocate alcohol. Even if you want to drink only a small amount. 7, do not eat food stored at room temperature for too long, may be contaminated by fungal toxins. 8.The levels of additives, contaminants and residues in processed foods should be lower than the national limits.