In China, our parents’ generation “no meat to eat”, today’s society “meat to eat”, all kinds of restaurants, Japanese cuisine, Korean barbecue, American barbecue, Brazilian barbecue, Australian steak, all kinds of practices, the best taste, so that people enjoy When the human delicious, forget the troubles of life. But the next thing, people who have developed the habit of eating meat are dumbfounded. On October 26, 2015, the International Agency for Research on Cancer (IARC) under the World Health Organization listed “red meat and processed meat” as carcinogenic substances. The “meat eating” has become “carcinogenic” overnight, which makes meat eaters feel embarrassed and how to give up? After seeing the related reports in the media, some friends and even some patients in the clinic often ask me, “Doctor, by the way, can we still eat meat?” Red meat refers to the muscle meat of all mammals, such as beef, pork, lamb, horse meat, donkey meat, and so on. Processed meat refers to meat that has been treated or transformed, such as salted, cured, smoked, fermented, or otherwise processed to enhance the flavor of the meat. Most processed meats contain beef, pork and its offal, or meat by-products (e.g., blood, fat), and they include hot dogs, sausages, corned beef, beef jerky, canned meat, and meat-based preparations and sauces. The International Agency for Research on Cancer (IARC) study, “Meat as a Carcinogen,” is the definitive conclusion of 22 experts from 10 countries and based on more than 800 studies. Unfortunately, the risk of cancer from eating only poultry or fish was not included in the study, nor was there any research on whether a vegetarian diet could reduce the risk of cancer. The IARC says there is sufficient evidence that processed meat is “carcinogenic to humans”. For individuals, the risk of bowel cancer from eating processed meat is small, but the risk increases with consumption; for red meat, which the IARC considers “likely to cause cancer in humans,” the evidence is less strong. As an oncologist, textbooks from years ago clearly state that “a meat-rich, high-fat lifestyle is a major risk factor for colorectal cancer,” so the news is not new that long-term meat consumption may increase the risk of colorectal cancer. Therefore, I will guide the inquirers to a relatively healthy diet and suggest that they should not eat “processed meat” and reduce “red meat” as much as possible. But in life, we all know that “smoking may cause cancer”, and it is clearly written on the cigarette box that “smoking is harmful to health”, but there are many smokers!