Eat 500 grams of vegetables, 600 grams of cereals, 5 kinds of fruits, 90 grams of red meat and 6 grams of salt every day. …… This is Mr. Li’s recipe for fighting cancer. In recent years, as people pay more attention to cancer, many “digital” anti-cancer recipes have gradually emerged. Can eating like this every day really fight cancer? How big is the anti-cancer effect? Cancer is a process of cell proliferation and apoptosis, and diet is often a triggering process. About 1/3 of cancers are related to diet, and active control of intake components and changes in diet play a vital role in fighting cancer. Scientific studies have found that high fat and high calorie diets are positively correlated with the occurrence of breast cancer and may be related to the occurrence of endometrial, ovarian, prostate and gallbladder cancers; lung cancer patients are often deficient in vitamin A and selenium; laryngeal and oral cancers are related to smoking and alcohol abuse; thyroid cancer is related to the lack of iodine in the diet; nasopharyngeal cancer is related to nitrosamine contamination in the diet; food is too hard, too stimulating, or eaten too fast and too hot. In the long run, it is easy to develop esophageal cancer; excessive intake of saccharin may be one of the factors for the development of bladder cancer; spicy food and high-salt diet will damage the gastric mucosa and prompt the cells on the stomach wall to atrophy, which will easily induce cancer; moldy food contains a large amount of aflatoxin, which is one of the culprits for liver cancer …… Therefore, the scientific ‘diet against cancer’ is beneficial to recognize the health. The first and foremost thing is to change some eating habits and what not to eat, not what to be eaten. Anti-cancer recipes may be effective, but should be individualized Research has found that specific ingredients in some foods can effectively stop the growth and reproduction of cancer cells. Is fighting cancer through diet effective? How effective is it? The human body is a complex organism, and the composition of specific foods is bound to change after being absorbed by the body after digestion, and many nutrients in foods are activated precisely after being absorbed and broken down by the body. Therefore there is no test that can prove how much the anti-cancer ingredients of food can be effective, much less how much they can be effective in a particular person. However, a healthy diet to help fight cancer has gradually been recognized by the medical community. According to the introduction, the nutrients in food and the intervention of certain phytochemicals can enhance the body’s ability to repair and prevent itself, and play a significant inhibitory role on carcinogenic substances and cancer-promoting factors, thus blocking the growth of cancer cells. For example, eating more fruits, vegetables, dried beans, whole grains, legumes and their products can increase the intake of starch and fiber, thus reducing the chances of colon and rectal cancers. Therefore, every doctor in the clinic will present some knowledge about food for cancer prevention to the society and people. However, it is not possible to make a blanket statement, and it is still necessary to go to the hospital to confirm the diagnosis and regulate the diet under the doctor’s advice once there are factors of high incidence of cancer, and not to take the initiative. Specific dietary therapy is effective for some people, but for another person, it may be counterproductive. For example, protein powder, snow clams, placenta powder and other estrogen substitutes can be anti-aging, but they can easily lead to breast cancer, and people with high breast cancer risk factors should eat less. For example, beans are good for intestines, but grams increase the burden on kidneys, so kidney cancer patients should not eat more …… To prevent cancer, anti-cancer recipes are best individualized. The “absolute quantity” is counterproductive, but it is better to change it often. Should we eat anti-cancer food to the exact amount like the beginning of the article? Cancer prevention involves many aspects such as genetics, diet, living, mood, exercise, etc. Diet is only one of them. If we are framed by diet figures, but not combined with personal lifestyle, height and weight, age, daily consumption, personal constitution, etc., we may ‘cocoon ourselves’. Cancer prevention is not a simple string of numbers, and even if something is good, it cannot be eaten in absolute quantity for a long time. If we want to eat healthily, we have to take into account different people’s physique, gender, age and other factors, and pay attention to the diversification and balance of nutrition in a period of time, if we only pursue a few numbers in a uniform way, we will put the cart before the horse. Moreover, frequent changes in food are good for fighting cancer. Scientists at the Stanford Cancer Institute have found that “cancer development” is a long-term reversible “project” in which Whenever there is a break in this “project”, the whole “cancer project” will have to start again. Therefore, it is important to keep changing recipes, diversifying the variety as much as possible, achieving nutritional balance and proper proportions, especially changing the fixed eating habits and eating “omnivorous food”. Therefore, it is better to change the food frequently. If there is a factor that tests for cancer in a certain food, change the food and you will interrupt the ‘cancer project’ frequently. The emphasis on certain numbers is more for people to achieve a certain intensity in order to receive better results, and also for easy to remember and operate. In fact, what is more important than numbers is the idea of health. In terms of eating 500 grams of vegetables a day, it is emphasizing the concept of “eating more vegetables is good for health”, and normal people can change the amount of vegetables according to their own circumstances, which can be 600 grams or 400 grams.